CAV 1 & 2 Command structure for LANC, S-Link & Infrared Signals.

This document is a revision of the original from Dan Zenechelsky, I have modified it and as at this date is my latest revision. As time goes by I shall be adding to it, if anybody has any revisions or other data please advise me and I shall update this document.

I am also looking at the CAV-50 which is supplied with the PCLK-MD1 unit and will include the details in the S-link section. This document will also appear at my web site Http://www.sonymods.com

Please send revisions to : modit@bigfoot.com

1.0 Overview of the CAV units

The CAV unit’s are an RS232 device that operates at 9600bps (8,N,1). The current family of units are the CAV 1 & 2 which have outputs for IR, S-link & control-A1, there is also the CAV 50 this unit has only a control- A1 output. For each there is a general format for both commands sent to the unit and responses received from the unit. This format consists of a sequence of bytes terminated in a 0xFF terminating character.

Example sequence --> 0x81 0x07 0x05 0x41 0x02 0x01 0xFF

The first byte in a sequence represents the direction: 0x81 is a command to the device, and 0x90 is status returned.

The second byte represents the complete length of the sequence, including the direction byte, the length byte, and the terminating byte.

The third byte describes the class of device which is to be controlled, and the connector to which the command is sent. Possible values include: 0x00 -- cancel, 0x01 -- pre-programmed infrared, 0x05 -- slink, 0x10 -- learned infrared.

The remaining bytes vary depending on the type of operation.

These are the functions that seem to work with these CAV units.

Byte 3	Value in Hex
Infrared	01
Lanc	02
S-link (control A, A1)	05
Learn Infrared	10
Cancel	00

Whilst working on this unit I have come across other data strings the original program from Sony sends & receives.

1: PC sends to CAV1 & 2 unit

0x81 0x06 0x80 0x20 0x11 0xFF

I beleive that this is sent to see if the CAV1 & 2 unit is there if it is it responds with:

CAV1 & 2 unit sends back to PC every 30 seconds

0x90 0x06 0x80 0x02 0x05 0xFF

2: The CAV1 & 2 unit also responds to the PC with the following data string:

0x90 0x06 0x80 0x20 0x02 0xFF Battery in Egg mouse is low

0x90 0x06 0x80 0x20 0x01 0xFF Battery in Egg mouse is OK

3: When a command is sent from the PC to the CAV1 & 2 unit and it's not a valid command we get the following response.

0x90 0x07 0x01 0xYZ 0x40 0x01 0xFF

where Byte 4 (0xYZ) = device ID

2.0 Pre programmed Infra red commands

There are two types of IR transmissions that can be done using the CAV 1&2 hardware. The CAV 1&2 unit comes with a set of pre-programmed IR sequences that can be used, and there is also an IR learning feature, which is described further on

To use a pre-programmed IR command, you need to send a sequence of bytes, as defined below .

The third byte in the sequence, which defines the class of device, should be set to 0x01.

Byte four defines the device number of the unit that you are trying to control. See Table I for a list of device numbers.

Bytes five and six combine to define which "key to press" (for example, play, stop, etc.) See belowfor the list of key codes.

For example, the byte sequence for the PLAY button on a SONY CD player is: 0x81 0x07 0x01 0x41 0x02 0x01 0xFF.

After sending a byte sequences, you need to pause for ~50 milliseconds and send the sequence: 0x81 0x05 0x01 0x00 0xFF, which stops the IR transmitter.

Table 1.

Here is the current list of valid device and commands available to you with the CAV-1 &2 Interface boxes. The following is the list I have compiled for valid devices, these would appear as Byte 4 in the command sequence to the unit.

Device ID's		Device Controlled	Device ID's	Device Controlled	Device ID's	Device Controlled
1	77	Sony VCR 1	85	GE VCR 1	A2	Kenwood LD
2	77	Sony VCR 2	86	GE VCR 2	B1	Emerson TV 1
3	77	Sony VCR 3	87	Hitachi VCR 1	B2	Emerson TV 2
4	40	Sony LD	88	Misubishi VCR 1	B3	GE TV 1
10	45	Sony TV	89	Misubishi VCR 2	B4	GE TV 2
15	11	Sony Projector	8A	Misubishi VCR 3	B5	Hitach TV 1
16	44	Sony ????	8B	Panasonic VCR 1	B6	Hitach TV 2
17	34	Sony ????	8C	Panasonic VCR 2	B7	Mitsubishi TV 1
41	68	Sony CD 1	8D	RCA VCR 1	B8	Mitsubishi TV 2
42	68	Sony CD 2	8E	RCA VCR 2	B9	Panasonic TV 1
43	68	Sony CD 3	8F	Toshiba VCR 1	BA	Panasonic TV 2
44	23	Sony Tape	90	Toshiba VCR 2	BB	RCA TV 1
45	28	Sony Tuner	91	Fischer VCR 1	BC	Toshiba TV
46	21	Sony DAT	92	Fischer VCR 2	BD	Fischer TV 1
47	54	Sony MD 1	93	Fischer VCR 3	BE	Fischer TV 2
48	54	Sony MD 2	94	Fischer VCR 4	BF	Goldstar TV 1
60	21	Sony Audio Amp	95	Goldstar VCR 1	C0	Goldstar TV 2
61	22	Sony AV Amp	96	JVC VCR 1	C1	JVC TV 1
62	22	Sony ????	97	JVC VCR 2	C2	Sanyo TV 1
			98	Sharp VCR 1	C3	Sharp TV 1
81		Emerson VCR 1	99	Sharp VCR 2	C4	Sharp TV 2
82		Emerson VCR 2	9A	Zenith VCR 1	C5	Sharp TV 3
83		Emerson VCR 3	A0	Pioneer LD	C6	Zenith TV
84		Emerson VCR 4	A1	Panasonic LD	FE

The following is the list I have compiled for valid command’s, these would appear as Byte’s 5 & 6 in the command sequence to the unit. Note that there are simularities to these but they differ for each device. I have included the sircs device for each device and the whole sircs command for it.

When Byte 4 = 1 Sony VCR 1. The sircs device for VCR 1 is 01000 for 12bit & 100101101 for 15bit

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101001000	4	14		000100100101101
1	3	Power Off	111101001000	4	40	Main/ Sub	111010001000
1	10	Power toggle	101010001000	4	50	Tv/VTR	010101001000
2	1	Play	010110001000	7	1	Display	010110101000
2	2	Stop	000110001000	7	2	Counter Reset	011000101000
2	3	Pause	100110001000	7	10	Tape remaining	100000101000
2	11	Rewind	110110001000	7	20	Zero mem	111000101000
2	12	Fast forward	001110001000	7	26	Timer display	001110101000
2	13	Seek back	000101001000	8	10		011101000101101
2	14	Seek forward	100101001000	8	11		111101000101101
2	15	Index -	111010101000	8	12	Timer Record	101001101000
2	16	Index +	011010101000	B	1		011000000101101
2	21	Record	101110001000	B	2		111000000101101
2	22		011110001000	B	3		000100000101101
3	1	1	000000001000	B	4		100100000101101
3	2	2	100000001000	B	5		010100000101101
3	3	3	010000001000	B	6		110100000101101
3	4	4	110000001000	B	7		001100000101101
3	5	5	001000001000	B	8		101100000101101
3	6	6	101000001000	B	10	G-Code set	000001100101101
3	7	7	011000001000	B	11		100001100101101
3	8	8	111000001000	B	12		010001100101101
3	9	9	000100001000	B	13		110001100101101
3	A	0/10	100100001000	10	1	Index Mark	000100101000
3	B	--/11	010100001000	10	2	Index erase	100100101000
3	C	12	110100001000	10	3	Shuttle edit +	110010101000
3	D	13	001100001000	10	4	Shuttle edit -	001010101000
3	E	14	101100001000	10	5	VTR	101101000101101
3	F	15	011100001000	10	10	Menu	101100101000
3	10	16	111100001000	10	11	Enter	100010101000
3	21	CH -	100010001000	10	12	Menu up	010000101000
3	22	CH +	000010001000	10	13	Menu dwn	110000101000
4	1	Video toggle	111100101000	10	14	Menu right	100001101000
4	2		110000100101101	10	15	Menu left	010001101000
4	3	Video 1	101011000101101	10	16		000000101000
4	4	Video 2	011011000101101
4	5	Video 3	111011000101101
4	6	Video 4	000111000101101
4	10		010000100101101
4	11		001000100101101
4	12		101000100101101
4	13		111000100101101

When Byte 4 = (2) Sony VCR 2. The sircs device for VCR 2 is 11100 for 12bit & 11101101 for 15bit

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101011100	4	14		000100111101101
1	3	Power Off	111101011100	4	40	Main/ Sub	111010011100
1	10	Power toggle	101010011100	4	50	Tv/VTR	010101011100
2	1	Play	010110011100	7	1	Display	010110111100
2	2	Stop	000110011100	7	2	Counter Reset	011000111100
2	3	Pause	100110011100	7	10	Tape remaining	100000111100
2	11	Rewind	110110011100	7	20	Zero mem	111000111100
2	12	Fast forward	001110011100	7	26	Timer display	001110111100
2	13	Seek back	000101011100	8	10		011101011101101
2	14	Seek forward	100101011100	8	11		111101011101101
2	15	Index -	111010111100	8	12	Timer Record	101001111100
2	16	Index +	011010111100	B	1		011000011101101
2	21	Record	101110011100	B	2		111000011101101
2	22		011110011100	B	3		000100011101101
3	1	1	000000011100	B	4		100100011101101
3	2	2	100000011100	B	5		010100011101101
3	3	3	010000011100	B	6		110100011101101
3	4	4	110000011100	B	7		001100011101101
3	5	5	001000011100	B	8		101100011101101
3	6	6	101000011100	B	10	G-Code set	000001111101101
3	7	7	011000011100	B	11		100001111101101
3	8	8	111000011100	B	12		010001111101101
3	9	9	000100011100	B	13		110001111101101
3	A	0/10	100100011100	10	1	Index Mark	000100101000
3	B	--/11	010100011100	10	2	Index erase	100100101000
3	C	12	110100011100	10	3	Shuttle edit +	110010101000
3	D	13	001100011100	10	4	Shuttle edit -	001010101000
3	E	14	101100011100	10	5	VTR	101101011101101
3	F	15	011100011100	10	10	Menu	101100101000
3	10	16	111100011100	10	11	Enter	100010101000
3	21	CH -	100010011100	10	12	Menu up	010000101000
3	22	CH +	000010011100	10	13	Menu dwn	110000101000
4	1	Video toggle	111100111100	10	14	Menu right	100001101000
4	2		110000111101101	10	15	Menu left	010001101000
4	3	Video 1	101011011101101	10	16		000000101000
4	4	Video 2	011011011101101
4	5	Video 3	111011011101101
4	6	Video 4	000111011101101
4	10		010000111101101
4	11		001000111101101
4	12		101000111101101
4	13		111000111101101

When Byte 4 = (3) Sony VCR 3. The sircs device for VCR 3 is 11010 for 12bit & 11111101 for 15bit

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101011010	4	14		000100111111101
1	3	Power Off	111101011010	4	40	Main/ Sub	111010011010
1	10	Power toggle	101010011010	4	50	Tv/VTR	010101011010
2	1	Play	010110011010	7	1	Display	010110111010
2	2	Stop	000110011010	7	2	Counter Reset	011000111010
2	3	Pause	100110011010	7	10	Tape remaining	100000111010
2	11	Rewind	110110011010	7	20	Zero mem	111000111010
2	12	Fast forward	001110011010	7	26	Timer display	001110111010
2	13	Seek back	000101011010	8	10		011101011111101
2	14	Seek forward	100101011010	8	11		111101011111101
2	15	Index -	111010111010	8	12	Timer Record	101001111010
2	16	Index +	011010111010	B	1		011000011111101
2	21	Record	101110011010	B	2		111000011111101
2	22		011110001000	B	3		000100011111101
3	1	1	000000011010	B	4		100100011111101
3	2	2	100000011010	B	5		010100011111101
3	3	3	010000011010	B	6		110100011111101
3	4	4	110000011010	B	7		001100011111101
3	5	5	001000011010	B	8		101100011111101
3	6	6	101000011010	B	10	G-Code set	000001111111101
3	7	7	011000011010	B	11		100001111111101
3	8	8	111000011010	B	12		010001111111101
3	9	9	000100011010	B	13		110001111111101
3	A	0/10	100100011010	10	1	Index Mark	000100111010
3	B	--/11	010100011010	10	2	Index erase	100100111010
3	C	12	110100011010	10	3	Shuttle edit +	110010111010
3	D	13	001100011010	10	4	Shuttle edit -	001010111010
3	E	14	101100011010	10	5	VTR	101101011111101
3	F	15	011100011010	10	10	Menu	101100111010
3	10	16	111100011010	10	11	Enter	100010111010
3	21	CH -	100010011010	10	12	Menu up	010000111010
3	22	CH +	000010011010	10	13	Menu dwn	110000111010
4	1	Video toggle	111100111010	10	14	Menu right	100001111010
4	2		110000111111101	10	15	Menu left	010001111010
4	3	Video 1	101011011111101	10	16		000000111010
4	4	Video 2	011011011111101
4	5	Video 3	111011011111101
4	6	Video 4	000111011111101
4	10		010000111111101
4	11		001000111111101
4	12		101000111111101
4	13		111000111111101

When Byte 4 = (4 ) Sony LD. The sircs device for LD is 01100

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101001100	3	7	7	011000001100
1	3	Power Off	111101001100	3	8	8	111000001100
1	10	Power toggle	101010001100	3	9	9	000100001100
2	1	Play	010110001100	3	A	0/10	100100001100
2	2	Stop	000110001100	3	20	Search	110100001100
2	3	Pause	100110001100	3	23	+10	100111001100
2	13	Seek back	110110001100	3	40	Side A	101110101100
2	14	Seek forward	001110001100	3	41	Side B	011110101100
2	15	Index -	101011001100	6	10		011101101100
2	16	Index +	001011001100	6	11		111101101100
2	17		001010101100	6	12		000011101100
2	18		110010101100	6	13		100011101100
2	33		001010001100	6	14		110011101100
2	40		011010001100	7	1	Display	010111001100
3	1	1	000000001100	7	10	Time	000101001100
3	2	2	100000001100	11	1		001111101100
3	3	3	010000001100	11	2		101111101100
3	4	4	110000001100	11	3		000001101100
3	5	5	001000001100	11	4		100001101100
3	6	6	101000001100	11	5		010001101100

When Byte 4 = 10 Sony TV. The sircs device for LD is 10000

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101010000	4	1	Input toggle	101001010000
1	3	Power Off	111101010000	4	2	TV	001001010000
1	10	Power toggle	101010010000	4	3	Input 1	000000110000
3	1	1	000000010000	4	4	Input 2	100000110000
3	2	2	100000010000	4	5	Input 3	010000110000
3	3	3	010000010000	4	6	Input 8 (4)	111000110000
3	4	4	110000010000	4	7	(Text Index)	000100110000
3	5	5	001000010000	4	8	(Text Enlarge)	100100110000
3	6	6	101000010000	4	9	Input 4	110000110000
3	7	7	011000010000	4	A	Input 5	001000110000
3	8	8	111000010000	4	B	Input 6	101000110000
3	9	9	000100010000	4	C	Input 7	011000110000
3	A	0/10	100100010000	4	11	SAT Input	100010110000
3	B	--/11	010100010000	4	12		010010110000
3	C	12	110100010000	4	20	Cable Input	011100110000
3	D	13	001100010000	4	30	Ant/ Aux	010101010000
3	E	14	101100010000	4	40	A-B/MTS/Stereo	111010010000
3	F	15	011100010000	4	42		101100110000
3	10	16	111100010000	5	1	Volume +	010010010000
3	21	CH -	100010010000	5	2	Volume -	110010010000
3	22	CH +	000010010000	5	10	Mute	001010010000
				6	19	PinP	110110110000
				7	1	Display	010111010000
				8	20	Sleep	011011010000

When Byte 4 = 15 Sony Projector. The sircs device for Projector is 00101010

Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101000101010
1	3	Power Off	111101000101010
1	10	Power toggle	101010000101010
4	3		010100000101010
4	4		110100000101010
4	5		001100000101010
4	6		101100000101010
4	7		011100000101010
4	8		111100000101010
7	2	Picture mute	001001000101010
7	3	Status On	101001000101010

When Byte 4 = 16 Unknown Sony Device. The sircs device for Unknown Sony Device is 00000

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101000000	4	1	Video	101001000000
1	3	Power Off	111101000000	4	2	Tv	001001000000
1	10	Power toggle	101010000000	4	11		000100100000
3	1	1	000000000000	4	12		100100100000
3	2	2	100000000000	4	13		110100100000
3	3	3	010000000000	4	16		010100100000
3	4	4	110000000000	4	17		001100100000
3	5	5	001000000000	4	18		101100100000
3	6	6	101000000000	4	19		011100100000
3	7	7	011000000000	4	1A		111100100000
3	8	8	111000000000	4	40		111010000000
3	9	9	000100000000	4	41		000101000000
3	A	10	100100000000	4	42		001101000000
3	B	11	010100000000	5	1	Volume +	010010000000
3	C	12	110100000000	5	2	Volume -	110010000000
3	D	13	001100000000	5	10	Mute	001010000000
3	E	14	101100000000	7	1	Display	010111000000
3	F	15	011100000000	10	10	Menu	000111000000
3	10	16	111100000000	10	11	select	011011100000
3	21	Channel -	100010000000	10	12	Up arrow	010011100000
3	22	Channel +	000010000000	10	13	Down arrow	110011100000
				10	14	Right arrow	001011100000
				10	15	Left arrow	101011100000

When Byte 4 = 17 Sony DSS System. The sircs device for the Sony DSS is 11101101

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101011101101	3	F		011100011101101
1	3	Power Off	111101011101101	3	10		111100011101101
1	10	Power toggle	101010011101101	3	21	Channel +	100010011101101
3	1	1	000000011101101	3	22	Channel -	000010011101101
3	2	2	100000011101101	3	24	Jump	001101111101101
3	3	3	010000011101101	4	1	Tv / Video	101001011101101
3	4	4	110000011101101	4	2		001001011101101
3	5	5	001000011101101	4	41		000101011101101
3	6	6	101000011101101	7	1	Display	010111011101101
3	7	7	011000011101101	10	10	Menu	000111011101101
3	8	8	111000011101101	10	11	Select	011011111101101
3	9	9	000100011101101	10	12	Up arrow	010011111101101
3	A	0	100100011101101	10	13	Down arrow	110011111101101
3	B		010100011101101	10	14	Right arrow	001011111101101
3	C	Enter	110100011101101	10	15	Left arrow	101011111101101
3	D		001100011101101	10	16	Guide	011101111101101
3	E		101100011101101

When Byte 4 = 41 Sony CD player 1. The sircs device for Sony CD player 1is 10001

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101010001	3	23		111001010001
1	3	Power Off	111101010001	3	40		010100110001
1	10	Power toggle	101010010001	3	41		110100110001
2	1	Play	010011010001	3	42		001100110001
2	2	Stop	000111010001	3	51	Disc 1	000000110001
2	3	Pause	100111010001	3	52	Disc 2	100000110001
2	13	Seek back	110011010001	3	53	Disc 3	010000110001
2	14	Seek forward	001011010001	3	54	Disc 4	110000110001
2	15	Index -	000011010001	3	55	Disc 5	001000110001
2	16	Index +	100011010001	3	56	Disc 6	101000110001
2	17	Rewind	010111010001	3	57	Disc 7	011000110001
2	18	Fest forward	110111010001	3	58	Disc 8	111000110001
2	40		011010010001	3	59	Disc 9	000100110001
3	1	1 ( F )	000000010001	3	5A	Disc 10	100100110001
3	2	2 ( G )	100000010001	3	5B	Disc skip	011111010001
3	3	3 ( H )	010000010001	3	5C		101111010001
3	4	4 ( I )	110000010001	5	1	Voluve +	010010010001
3	5	5 ( J )	001000010001	5	2	Volume -	110010010001
3	6	6 ( K )	101000010001	7	10	Display	000101010001
3	7	7 ( L )	011000010001	10	1	Continue ( A )	101110010001
3	8	8 ( M )	111000010001	10	2	Program ( C )	111110010001
3	9	9 ( N )	000100010001	10	3	Repeat ( ? )	001101010001
3	A	10 ( O )	000001010001	10	4	Shuffle ( B )	101011010001
3	B	11 ( P )	100001010001	10	5	M.Scan ( ) )	001111010001
3	C	12 (Q )	010001010001	10	6	A.Space ( ( )	011100110001
3	D	13 (R )	110001010001	10	7	Clear	111100010001
3	E	14 ( S )	001001010001	10	8		111100110001
3	F	15 ( T )	101001010001	10	9	Fader	111110110001
3	10	16 ( U )	011001010001	10	10	Character	000001110001
3	11	17 ( V )	000010010001	10	11	Number	100001110001
3	12	18 ( W )	100010010001	10	12		010001110001
3	13	19 ( X )	111010010001	10	13	Name	110001110001
3	14	20( Y )	100101010001	10	14		001001110001
3	20		110100010001	10	15		101001110001

When Byte 4 = 42 Sony CD player 2. The sircs device for Sony CD player 2 is 15bit 10011100

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101010011100	3	23		111001010011100
1	3	Power Off	111101010011100	3	40		010100110011100
1	10	Power toggle	101010010011100	3	41		110100110011100
2	1	Play	010011010011100	3	42		001100110011100
2	2	Stop	000111010011100	3	51		000000110011100
2	3	Pause	100111010011100	3	52		100000110011100
2	13	Seek back	110011010011100	3	53		010000110011100
2	14	Seek forward	001011010011100	3	54		110000110011100
2	15	Index -	000011010011100	3	55		001000110011100
2	16	Index +	100011010011100	3	56		101000110011100
2	17		010111010011100	3	57		011000110011100
2	18		110111010011100	3	58		111000110011100
2	40		011010010011100	3	59		000100110011100
3	1	1 ( F )	000000010011100	3	5A		100100110011100
3	2	2 ( G )	100000010011100	3	5B		011111010011100
3	3	3 ( H )	010000010011100	3	5C		101111010011100
3	4	4 ( I )	110000010011100	5	1		010010010011100
3	5	5 ( J )	001000010011100	5	2		110010010011100
3	6	6 ( K )	101000010011100	7	10	Display	000101010011100
3	7	7 ( L )	011000010011100	10	1	Continue ( A )	101110010011100
3	8	8 ( M )	111000010011100	10	2	Program ( C )	111110010011100
3	9	9 ( N )	000100010011100	10	3	Repeat ( ? )	001101010011100
3	A	10 ( O )	000001010011100	10	4	Shuffle ( B )	101011010011100
3	B	11 ( P )	100001010011100	10	5	M.Scan ( ) )	001111010011100
3	C	12 (Q )	010001010011100	10	6	A.Space ( ( )	011100110011100
3	D	13 (R )	110001010011100	10	7	Clear	111100010011100
3	E	14 ( S )	001001010011100	10	8		111100110011100
3	F	15 ( T )	101001010011100	10	9		111110110011100
3	10	16 ( U )	011001010011100	10	10	Character	000001110011100
3	11	17 ( V )	000010010011100	10	11	Number	100001110011100
3	12	18 ( W )	100010010011100	10	12		010001110011100
3	13	19 ( X )	111010010011100	10	13	Name	110001110011100
3	14	20( Y )	100101010011100	10	14		001001110011100
3	20		110100010011100	10	15		101001110011100

When Byte 4 = 43 Sony CD player 3. The sircs device for Sony CD player 3 is

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On		3	23
1	3	Power Off		3	40
1	10	Power toggle		3	41
2	1	Play		3	42
2	2	Stop		3	51
2	3	Pause		3	52
2	13	Seek back		3	53
2	14	Seek forward		3	54
2	15	Index -		3	55
2	16	Index +		3	56
2	17			3	57
2	18			3	58
2	40			3	59
3	1	1 ( F )		3	5A
3	2	2 ( G )		3	5B
3	3	3 ( H )		3	5C
3	4	4 ( I )		5	1
3	5	5 ( J )		5	2
3	6	6 ( K )		7	10	Display
3	7	7 ( L )		10	1	Continue ( A )
3	8	8 ( M )		10	2	Program ( C )
3	9	9 ( N )		10	3	Repeat ( ? )
3	A	10 ( O )		10	4	Shuffle ( B )
3	B	11 ( P )		10	5	M.Scan ( ) )
3	C	12 (Q )		10	6	A.Space ( ( )
3	D	13 (R )		10	7	Clear
3	E	14 ( S )		10	8
3	F	15 ( T )		10	9
3	10	16 ( U )		10	10	Character
3	11	17 ( V )		10	11	Number
3	12	18 ( W )		10	12
3	13	19 ( X )		10	13	Name
3	14	20( Y )		10	14
3	20			10	15

When Byte 4 = 44 Sony Tape. The sircs device for Sony CD Tape is 01110

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
2	1	Deck A Play	010011001110	2	24	Deck B record	011110001110
2	2	Deck B Stop	000110001110	2	82	Deck A stop	000111000001
2	3	Deck B Pause	100110001110	2	83	Deck A pause	100111000001
2	4	Deck B play	010110001110	2	84	Deck A play	010011000001
2	5	Deck B rev play	000001001110	2	85	Deck A rev play	111011000001
2	11	Deck B rewind	110110001110	2	91	Deck A rewind	110011000001
2	12	Deck B fast fwd	001110001110	2	92	Deck A fast fwd	001011000001
2	15		000011001110	2	A1		101011000001
2	16		100011001110	2	A2	Deck A record	011011000001
2	21		101110001110	2	A3	Deck B	010111000001
2	22		011110001110	2	A4	Deck A misc key	111111000001
2	23		100001001110

When Byte 4 = 45 Sony Tuner. The sircs device for Sony Tuner is 10110

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
3	1	1	000000010110	3	40		110010010110
3	2	2	100000010110	3	41		010010010110
3	3	3	010000010110	3	42		110011010110
3	4	4	110000010110	3	43		000011010110
3	5	5	001000010110	3	44		100011010110
3	6	6	101000010110	3	45		010011010110
3	7	7	011000010110	4	30	Band	111100010110
3	8	8	111000010110	4	31		000110010110
3	9	9	000100010110	4	32		101110010110
3	A	0/10	100100010110	4	33		100110010110
3	20		001100010110	4	34		010110010110
3	21	Preset -	100010010110	4	40		000001010110
3	22	Preset +	000010010110	4	42		100001010110
3	23		011001010110	4	43		010001010110

When Byte 4 = 46 Sony DAT machine. The sircs device for Sony DAT machine is 00111

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
2	1		010111000111	3	1		000000000111
2	2		000111000111	3	2		100000000111
2	3		100111000111	3	3		010000000111
2	11		110111000111	3	4		110000000111
2	12		001111000111	3	5		001000000111
2	15		000101100111	3	6		101000000111
2	16		100101100111	3	7		011000000111
2	21		011111000111	3	8		111000000111
2	22		101111000111	3	9		000100000111
2	24		111111000111	3	A		001010000111
				3	20		110110000111

When Byte 4 = 47 Sony MD machine 1. The sircs device for Sony MD machine 1 is 11110

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On		3	10	16 ( U )	101000111110
1	3	Power Off		3	11	17 ( V )	011000111110
1	10	Power toggle		3	12	18 ( W )	111000111110
2	1	Play	010101011110	3	13	19 ( X )	000100111110
2	2	Stop	000101011110	3	14	20( Y )	100100111110
2	3	Pause	100101011110	3	15	21( Z )	010100111110
2	13	Seek back	000001011110	3	16	22( - )	110100111110
2	14	Seek forward	100001011110	3	17	23 ( |_| )	001100111110
2	15	Index -		3	18	24 ( . )	101100111110
2	16	Index +		3	19	25 ( , )	011100111110
2	21	Rec	101101011110	3	20
2	28	T.Rec	000011011110	3	23	>25 ( / )	010100011110
3	1	1 ( F )	000000011110	7	10	Display	000110011110
3	2	2 ( G )	100000011110	7	11	Scroll	100110011110
3	3	3 ( H )	010000011110	7	12	Present ( E )	010110011110
3	4	4 ( I )	110000011110	7	13	Recorded ( D )	110110011110
3	5	5 ( J )	001000011110	10	1	Continue ( A )	101110011110
3	6	6 ( K )	101000011110	10	2	Program ( C )	111110011110
3	7	7 ( L )	011000011110	10	3	Repeat ( ? )	011001011110
3	8	8 ( M )	111000011110	10	4	Shuffle ( B )	011110011110
3	9	9 ( N )	000100011110	10	5	M.Scan ( ) )	001011011110
3	A	10 ( O )	100100011110	10	6	A.Space ( ( )	110011011110
3	B	11 ( P )	000000111110	10	7	Clear	111100011110
3	C	12 (Q )	100000111110	10	10	Character	011011011110
3	D	13 (R )	010000111110	10	11	Number	111011011110
3	E	14 ( S )	110000111110	10	12
3	F	15 ( T )	001000111110	10	13	Name	001111011110

When Byte 4 = 48 Sony MD machine 2. The sircs device for Sony MD machine 2 is

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On		3	10	16 ( U )
1	3	Power Off		3	11	17 ( V )
1	10	Power toggle		3	12	18 ( W )
2	1	Play		3	13	19 ( X )
2	2	Stop		3	14	20( Y )
2	3	Pause		3	15	21( Z )
2	13	Seek back		3	16	22( - )
2	14	Seek forward		3	17	23 ( |_| )
2	15	Index -		3	18	24 ( . )
2	16	Index +		3	19	25 ( , )
2	21	Rec		3	20
2	28	T.Rec		3	23	>25 ( / )
3	1	1 ( F )		7	10	Display
3	2	2 ( G )		7	11	Scroll
3	3	3 ( H )		7	12	Present ( E )
3	4	4 ( I )		7	13	Recorded ( D )
3	5	5 ( J )		10	1	Continue ( A )
3	6	6 ( K )		10	2	Program ( C )
3	7	7 ( L )		10	3	Repeat ( ? )
3	8	8 ( M )		10	4	Shuffle ( B )
3	9	9 ( N )		10	5	M.Scan ( ) )
3	A	10 ( O )		10	6	A.Space ( ( )
3	B	11 ( P )		10	7	Clear
3	C	12 (Q )		10	10	Character
3	D	13 (R )		10	11	Number
3	E	14 ( S )		10	12
3	F	15 ( T )		10	13	Name

When Byte 4 = 60 Sony Amp. The sircs device for Sony Amp is 00110

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101000110	4	52	Tape 2	001001000110
1	3	Power Off	111101000110	4	53		110110000110
1	10	Power toggle	101010000110	4	54	Tuner	100001000110
4	40		010001000110	4	55	Phono	000001000110
4	41		011110000110	4	56	Aux	001110000110
4	42		010110000110	4	57		101110000110
4	45		100110000110	4	60		111010000110
4	46		000110000110	4	61		011010000110
4	50	CD	101001000110	5	1	Volume +	010010000110
4	51	DAT / Tape 1	110001000110	5	2	Volume -	110010000110
				5	10	Mute	001010000110

When Byte 4 = 61 Sony AV Amp. The sircs device for Sony AV Amp is 00001

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
1	2	Power On	011101000001	4	51	DAT / Tape 1	110001000001
1	3	Power Off	111101000001	4	52	Tape 2	001001000001
1	10	Power toggle	101010000001	4	53	DAT	011000100001
4	40	Video 1	010001000001	4	54	Tuner	100001000001
4	41	Video 2	011110000001	4	55	Phono	000001000001
4	42	Video 3	010000100001	4	56	Aux	101110000001
4	43	Video 4	110000100001	4	60	Digital	001000100001
4	44		100000100001	4	61		101000100001
4	45	LD	110101100001	5	1	Volume +	010010000001
4	46		010101100001	5	2	Volume -	110010000001
4	50	CD	101001000001	5	10	Mute	001010000001

When Byte 4 = 62 Sony ?????. The sircs device for Sony ???? is 01001

Byte 5	Byte6	Command	Sircs Command	Byte 5	Byte6	Command	Sircs Command
5	20	Centre +	001010101001	6	8		111110101001
5	21	Centre -	101010101001	6	9		000001101001
5	22	Rear	011100101001	6	A		100001101001
5	23	Rear -	111100101001	6	B		010001101001
6	1		000110101001	6	C		110001101001
6	2		100110101001	6	10	Sound field mode	011011001001
6	3		010110101001	6	11		111011001001
6	4		110110101001	6	20	Eq/tone/on/off	001101001001
6	5		001110101001	6	21		001000101001
6	6		101110101001	6	22		101000101001
6	7		011110101001

When Byte 4 = FE unknown commands

Byte 5

Byte6

Command

Byte 5

Byte6

Command

3.0 Learning New Infrared Sequences

The second type of IR transmission that can be done with the CAV unit involves teaching it new IR sequences. The CAV has a certain number of memory locations into which can be stored an IR sequence, the actual number of sequences that can be learned has yet to be determined. Each of these locations has an index number associated with it. When you instruct the CAV to learn a new sequence, you need to tell it which location index to store that sequence in. Likewise, you need to provide the index when you wish to play back the stored sequence.

To learn a new IR sequence, you need to send a sequence of bytes, as defined in section I. The third byte in the sequence, which defines the class of device, should be set to 0x10, the fourth byte should be set to 0x01, and the fifth byte should be set to the index location. For example, the sequence 0x81 0x06 0x10 0x01 0x01 0xFF, instructs the CAV to begin learning a new IR sequence and store it in location number 1.

After sending this command, there are several responses that the CAV may reply back with. The sequence 0x90 0x06 0x10 0x20 0x03 0xFF, signifies that the unit is in the process of receiving an IR transmission. The sequence 0x90 0x06 0x10 0x20 0x01 0xFF signifies that the unit has successfully learned the IR sequence, and the sequence 0x90 0x06 0x10 0x20 0x02 0xFF signifies that it has failed to learn the sequence.

A learn command can be canceled by sending the sequence 0x81 0x05 0x10 0x00 0xFF.

After the CAV has successfully learned an IR sequence, it can be played back by sending a sequence with byte three set to 0x10, byte four set to 0x02, and byte five set to the proper index. For example, the sequence 0x81 0x06 0x10 0x02 0x01 0xFF plays back the IR sequence stored in location

number 1.

4.0 S-Link commands and structure.

S-link commands are similar to that of the Infrared commands except there are slight differences when it comes to querying the unit.

Before doing anything, the protocols mentioned below are for interfaces made by Sony (like the CAV). These commands are different from the raw Control-A1 protocol that many others are using to control their players via Control-A1 interfaces.

Format

Header (4byte) Command 0xFF

So the command string 0x81 0x07 0x05 0x41 0x02 0x01 0xFF can be broken down as follows

byte 1	byte 2	byte 3	byte 4
0x81	0x07	0x05	0x41	0x02 0x01	0xFF
Transmit to / from pc	S-link	# bytes	Device	function code	Termination Byte

There are 4 bytes in the header. The first byte is for direction of the message.

0x81 ... message to CD player

0x90 ... message from CD player

The second byte is the total byte length of the message, including the header and the termination bytes and is alway 0xFF.

The third byte is for selecting which medium the message will be used for. We will be using S-Link to talk with CD player, and this is 0x05.

The fourth byte is for selecting which device the message will be sent to. The device ID looks like this:

0x41 ... CD Player 1

0x42 ... CD Player 2

0x43 ... CD Player 3

0x47 ... Mini disc player 1

0x48 ... Mini disc player 2

Sending basic commands via the SLINK port is very similar to using pre-programming infrared. There are, however, some differences. For SLINK commands, byte three should be set to 0x05. The transmitter stop sequence is also different. For SLINK, you need to use the sequence: 0x81 0x05 0x06 0x00 0xFF.

For example, to send the PLAY command to a SONY CD player via the SLINK port, the sequence is: 0x81 0x07 0x05 0x41 0x02 0x01 0xFF. This should be followed by a ~50 millisecond pause after which you send the sequence: 0x81 0x05 0x06 0x00 0xFF.

There are also more advanced commands that can be sent using SLINK, and since SLINK is a two-way bus, status can be sent from the device to the CAV as well.

The following table are the S-link commands I have found so far.

5.0 S-Link commands

Note Byte 4 (0xYZ) is rhe device that you wish to control ie CD player. This is just the basic list and I shall add to it when time permits.

Command		Code
Play	0x02 0x01
	Send	0x81 0x07 0x05 0xYZ 0x02 0x01 0xFF
	Receive	0x90 0x07 0x05 0xYZ 0x02 0x01 0xFF
Stop	0x02 0x02
	Send	0x81 0x07 0x05 0xYZ 0x02 0x02 0xFF
	Receive	0x90 0x07 0x05 0xYZ 0x02 0x02 0xFF
Toggle pause	0x02 0x03
	Send	0x81 0x07 0x05 0xYZ 0x02 0x01 0xFF
	Receive play->pause	0x90 0x07 0x05 0xYZ 0x02 0x03 0xFF
	Receive pause->play	0x90 0x07 0x05 0xYZ 0x02 0x01 0xFF
Pause	0x02 0x06
	Send	0x81 0x07 0x05 0xYZ 0x02 0x06 0xFF
	Receive	0x90 0x07 0x05 0xYZ 0x02 0x03 0xFF
Next Track	0x02 0x16
	Send	0x81 0x07 0x05 0xYZ 0x02 0x16 0xFF
	Receive	0x90 0x0B 0x05 0xYZ 0x20 0x50 DSK TRK MIN SEC 0xFF DSK = disk number, TRK = track number, MIN = minutes, SEC = seconds
Previous Track	0x02 0x15
	Send	0x81 0x07 0x05 0xYZ 0x02 0x15 0xFF
	Receive	0x90 0x0B 0x05 0xYZ 0x20 0x50 DSK TRK MIN SEC 0xFF DSK = disk number, TRK = track number, MIN = minutes, SEC = seconds
Scan Forward	0x02 0x18 or 0x02 0x14
	Send	0x81 0x07 0x05 0xYZ 0x02 0x18 0xFF
	Receive	NONE

Scan Backward	0x02 0x17 or 0x02 0x13
	Send	0x81 0x07 0x05 0xYZ 0x02 0x13 0xFF
	Receive	NONE
Remote On	0x10 0x01
	Send	0x81 0x07 0x05 0xYZ 0x10 0x01 0xFF
	Receive	0x90 0x0C 0x05 0xYZ 0x20 0x20 0x00 0x80 0x00 DSK TRK 0xFF DSK = disk number, TRK = track number
Remote Off	0x10 0x02
	Send	0x81 0x07 0x05 0xYZ 0x10 0x02 0xFF
	Receive	0x90 0x0C 0x05 0xYZ 0x20 0x20 0x01 0xC0 0x00 DSK TRK 0xFF DSK = disk number, TRK = track number
Time Report	0x07 0x10
	Send	0x81 0x07 0x05 0xYZ 0x07 0x10 0xFF
	Receive	0x90 0x0B 0x05 0xYZ 0x20 0x51 TRK IND MIN SEC 0xFF TRK = track number, IND = index number, MIN = minutes, SEC = seconds
Time Report Off	0x07 0x11
	Send	0x81 0x07 0x05 0xYZ 0x07 0x11 0xFF
	Receive	NONE
PowerOn	0x01 0x02
	Send	0x81 0x07 0x05 0xYZ 0x01 0x02 0xFF
	Receive	0x90 0x07 0x05 0xYZ 0x01 0x02 0xFF
Power Off	0x01 0x02
	Send	0x81 0x07 0x05 0xYZ 0x01 0x03 0xFF
	Receive	0x90 0x07 0x05 0xYZ 0x01 0x03 0xFF
Get CD Info	0x20 0x44 DSK
	Send	0x81 0x08 0x05 0xYZ 0x20 0x44 DSK 0xFF
	Receive	0x90 0x0D 0x05 0xYZ 0x20 0x60 DSK MINTRK MAXTRK MIN SEC FRM 0xFF DSK = disk number, MINTRK = minimum track, MAXTRK = maximum track, MIN = minutes, SEC = seconds FRM = frame offsets (time is TOTAL TIME)

Get Track Info	0x20 0x45 DSK TRK
	Send	0x81 0x09 0x05 0xYZ 0x20 0x45 DSK TRK 0xFF
	Receive	0x90 0x0B 0x05 0xYZ 0x20 0x62 DSKTRK MIN SEC 0xFF DSK = disk number, TRK = track number, MIN = minutes, SEC = seconds (time is TRACK TIME)
Play Specific Disc and Track	0x03 0x42 DSK TRK
	Send	0x81 0x09 0x05 0xYZ 0x03 0x42 DSK TRK 0xFF
	Receive	0x90 0x0B 0x05 0xYZ 0x20 0x50 DSK TRK MIN SEC 0xFF DSK = disk number, TRK = track number, MIN = minutes, SEC = seconds (time is TRACK TIME)