STV6412A(2003) 查看數據表（PDF） - STMicroelectronics
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STV6412A Datasheet PDF : 24 Pages
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STV6412A
Table 20. Standby Modes
Reg.
Addr
(Hex)
Description
ENC Inputs
VCR Inputs
TV Inputs
AUX Inputs
06 VCR Outputs
CINCH Outputs
TV Outputs
RFmod Outputs
Full Stop
Data
Bits
d7 d6 d5 d4 d3 d2 d1 d0
Comments
1 X X X X X X X 0 Inputs active
X X X X X X X 1 Inputs disabled
1 X X X X X X 0 X Inputs active
X X X X X X 1 X Inputs disabled
1 X X X X X 0 X X Inputs active
X X X X X 1 X X Inputs disabled
1 X X X X 0 X X X Inputs active
X X X X 1 X X X Inputs disabled
1 X X X 0 X X X X Audio & Video Outputs ON
X X X 1 X X X X Audio & Video Outputs OFF
1 X X 0 X X X X X Audio & Video Outputs ON
X X 1 X X X X X Audio & Video Outputs OFF
1 X 0 X X X X X X Audio & Video Outputs ON
X 1 X X X X X X Audio & Video Outputs OFF
1 0 X X X X X X X Audio & Video Outputs ON
1 X X X X X X X Audio & Video Outputs OFF
1
1
1
1
1
1
1
1
Only I2C bus and slow blanking
detection parts are supplied.
Table 21. Output Signals (Read Mode)
Reg.
Addr
(Hex)
Description
Data
Bits
d7 d6 d5 d4 d3 d2 d1 d0
Comments
Slow Blanking TV SCART
2 X X X X X X 0 1 Input <2 V
X X X X X X 1 0 Input 16/9 format
X X X X X X 1 1 Input 4/3 format
2
Slow Blanking VCR SCART
X X X X 0 1 X X Input <2 V
X X X X 1 0 X X Input 16/9 format
X X X X 1 1 X X Input 4/3 format
Interrupt Flag
1 X X X 0 X X X X No change since read
X X X 1 X X X X One change has been detected
(refer to Note 5)
Note 5: The Interrupt Flag will be cleared when this register is read. To prepare for a new interrupt, a “1” must be re-written in the IT Enable
bit (Reg. 04, d7).
3.2 Power-on Reset — Bus Register Initial Conditions
Power-on Reset is active when the supply VDD is less than 3.5 volts.
Non-significant bits (X) are pre-set to “0”.
Reg.
Data
Addr
(Hex) d7 d6 d5 d4 d3 d2 d1 d0
Comments
00 0 0 0 0 0 0 0 0 Audio TV and Cinch outputs are in Stereo Mode, 0 dB Gain Adjustment.
01
0
0
0
0
0
0
0
0
TV, Cinch and VCR audio outputs are muted. VCR output is in Stereo
Mode.
02 0 0 0 0 0 0 0 0 VCR, TV and RFmod video outputs are muted.
03
0
0
0
0
0
0
0
0
Fast Blanking is forced to ‘0’. RGB outputs are muted and in high imped-
ance.
04 0 0 0 0 0 0 0 0 C_GATE is high. C_VCR is high impedance.
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