Datasheet
6
SLES084C − August 2007TVP5146
1.7 Terminal Functions
Table 1−1. Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME NUMBER
I/O
DESCRIPTION
Analog Video
VI_1_A
VI_1_B
VI_1_C
VI_2_A
VI_2_B
VI_2_C
VI_3_A
VI_3_B
VI_3_C
VI_4_A
80
1
2
7
8
9
16
17
18
23
I
VI_1_x: Analog video input for CVBS/Pb/B/C
VI_2_x: Analog video input for CVBS/Y/G
VI_3_x: Analog video input for CVBS/Pr/R/C
VI_4_A: Analog video input for CVBS/Y
Up to 10 composite, 4 S-video, and 2 composite or 3 component video inputs (or a combination thereof)
can be supported.
The inputs must be ac-coupled. The recommended coupling capacitor is 0.1 µF.
The possible input configurations are listed in the input select register at I
2
C subaddress 00h (see Section
2.11.1).
Clock Signals
DATACLK 40 O Line-locked data output clock
XTAL1 74 I
External clock reference input. It can be connected to an external oscillator with a 1.8-V compatible clock
signal or to a 14.31818-MHz crystal oscillator.
XTAL2 75 O External clock reference output. Not connected if XTAL1 is driven by an external single-ended oscillator.
Digital Video
C_[9:0]/
GPIO
57, 58,
59, 60,
63, 64,
65, 66,
69, 70
O
Digital video output of CbCr, C_9 is MSB and C_0 is LSB. Unused outputs can be left unconnected. Also,
these terminals can be programmable general-purpose I/O.
For the 8-bit mode, the two LSBs are ignored.
C1 needs a pulldown resistor (see Figure 5−1).
Y_[9:0]
43, 44,
45, 46,
47, 50,
51, 52,
53, 54
O
Digital video output of Y/YCbCr, Y_9 is MSB and Y_0 is LSB.
For the 8-bit mode, the two LSBs are ignored. Unused outputs can be left unconnected.
Miscellaneous Signals
FSS/GPIO 35 I/O
Fast-switch (blanking) input. Switching signal between the synchronous component video (YPbPr/RGB)
and the composite video input.
Programmable general-purpose I/O
GLCO/I2CA 37 I/O
Genlock control output (GLCO)
During reset, this terminal is an input used to program the I
2
C address LSB.
INTREQ 30 O Interrupt request
PWDN 33 I
Power-down input:
1 = Power down
0 = Normal mode
RESETB 34 I Reset input, active low