STV6411A Datasheet, PDF (10/20 Pages) STMicroelectronics – AUDIO/VIDEO SWITCH MATRIX

STV6411A
I²C BUS SELECTION
Data transfers follow the usual I2C format: after the start condition (S), a 7-bit slave address is sent, followed
by an eighth bit which is a data direction bit (W). A 8-bit subadress is sent to select a register, followed by
a 8-bit data word to put in it.
The IC’s I2C bus decoder permits the automatic incrementation mode in write mode.
String Format
Write only mode (S : start condition, P : stop condition, A : acknowledge)
S
SLAVE ADDRESS
0A
SUBADDRESS
A DATA A P
Read only mode
S
SLAVE ADDRESS
1 A DATA A P
Slave Address
Address
A6
A5
A4
Value
1
0
0
Auto Increment Mode
S SLAVE ADDRESS 0 A
SUBADDRESS
A3
A2
A1
A0
1
0
1
X
A DATA0 A DATA1 A ........ DATAN A P
I²C Bus Address
Write Address : 1001 01X0
Read Address : 1001 01X1
Address Selection Pin Grounded : X = 0, write address = 94HEX, read address = 95HEX
Address Selection Pin to Supply : X = 1, write address = 96HEX, read address = 97HEX
Input Signals Summary (Write Mode)
Reg.
Addr.
(HEX)
00
01
02
03
04
05
06
07
08
DATA D7 DATA D6 DATA D5 DATA D4 DATA D3 DATA D2 DATA D1 DATA D0
TV/Cinch Audio Level Adjustment
Identical values should be written
to both registers
0/6dB
TV Gain
0/6dB
Cinch Gain
TV Mono
Not used
TV Audio Outputs Control
Cinch Audio Outputs Control
STV6410A
only
VCR Mono
STV6410A
only
VCR Audio Outputs Control
Not used
TV Chroma
Mute
Y/CVBS & Chroma TV Outputs Control
TV RF Ouput Control
TV R/C
Ouput
Control
TV RGB Output Control TV FB Output Control
RGB Gain
STV6410A
only
R/Csub
Encoder
Clamp
STV6410A
only
VCR
Chroma
Mute
VCR Y/CVBS &
Chroma Outputs Control
Not used Not used
STV6410A
only
Slow Blanking
VCR SCART
Slow Blanking
TV SCART
VCR
Output
OFF
STV6410A
only
Set to 1
TV
Output
OFF
ENCOD
Clamp
disable
TV
Clamp
disable
ASTB
Clamp
disable
VCR
Clamp
disable
RGB
Clamp
disable
Not used
Not used
Not used
Not used
Not used
Not used
RF Mod
CINCH
Output OFF Output OFF
Not used data must be put to "0"
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