Datasheet

TVP5151
SLES241E–SEPTEMBER 2009–REVISED OCTOBER 2011 www.ti.com
Table 2-1. Terminal Functions (continued)
TERMINAL
NO. I/O DESCRIPTION
NAME
ZQC PBS
This terminal has three functions selectable by bit 7 of I
2
C register 03h and bit 1 of I
2
C
register 0Fh:
• INTREQ: Interrupt request output
• GPCL: General-purpose control logic output. In this mode, the state of terminal 27 is
INTREQ/
B5 27 O
directly programmed via I
2
C.
GPCL/VBLK
• VBLK: Vertical blanking output. In this mode, terminal 27 indicates the vertical blanking
interval of the output video. The beginning and end times of this signal are
programmable via I
2
C.
An external pullup or pulldown resistor is required under certain conditions (see Figure 6-1).
IO_DVDD G2 10 P Digital output supply, 1.8 V to 3.3 V
SCLK G1 9 O System clock at 2x the frequency of the pixel clock.
Power-down terminal (active low). Puts the decoder in standby mode. Preserves the value
PDN A5 28 I
of the registers.
Active-low reset. RESETB can be used only when PDN = 1. When RESETB is pulled low, it
RESETB F1 8 I
resets all the registers and restarts the internal microprocessor.
SCL D7 21 I/O I
2
C serial clock (open drain)
SDA C7 22 I/O I
2
C serial data (open drain)
VSYNC: Vertical synchronization signal
PALI: PAL line indicator or horizontal lock indicator. For the PAL line indicator:
VSYNC/PALI B7 24 O
1 = Noninverted line
0 = Inverted line
G3 12
F4 13
G4 14
YOUT[6:0] G5 15 O ITU-R BT.656 output/YCbCr 4:2:2 output with discrete syncs
G6 16
G7 17
F7 18
I2CSEL: Determines address for I
2
C (sampled during reset). A pullup or pulldown resistor is
needed (>1 kΩ) to program the terminal to the desired address.
1 = Address is BAh
YOUT7/I2CSEL F3 11 I/O
0 = Address is B8h
YOUT7: Most significant bit (MSB) of ITU-R BT.656 output/YCbCr 4:2:2 output
8 Device Details Copyright © 2009–2011, Texas Instruments Incorporated
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