Datasheet
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9 Internal Control Registers
9.1 Overview
TVP5154
4-CHANNEL LOW-POWER PAL/NTSC/SECAM VIDEO DECODER
WITH INDEPENDENT SCALERS AND FAST LOCK
SLES163A – MARCH 2006 – REVISED JULY 2006
Table 8-1. Reset and Power-Down Modes
PDN RESETB CONFIGURATION
0 0 Reserved (undefined state)
0 1 Powers down the decoder
1 0 Resets the decoder
1 1 Normal operation
The TVP5154 decoder is initialized and controlled by sets of internal registers that set all device operating
parameters. Communication between the external controller and the TVP5154 decoder is through the I
2
C.
Two sets of registers exist, direct and indirect. Table 9-1 shows the summary of the direct registers.
Reserved registers must not be written. Reserved bits in the defined registers must be written with 0s,
unless otherwise noted. The detailed programming information of each register is described in the
following sections.
I
2
C register 0xFE controls which of the four decoders receives I
2
C commands. I
2
C register 0xFF controls
which decoder core responds to I
2
C reads. Note, for a read operation, it is necessary to perform a write
first, in order to set the desired sub-address for reading.
After power up and the hardware reset, each decoder must be started by writing 0x00h to register 7Fh for
all four decoders.
Table 9-1. Direct Register Summary
REGISTER FUNCTION ADDRESS DEFAULT R/W
(1)
Video input source selection #1 00h 00h R/W
Analog channel controls 01h 15h R/W
Operation mode controls 02h 00h R/W
Miscellaneous controls 03h 01h R/W
Autoswitch mask 04h DCh R/W
Clock control 05h 08h R/W
Color killer threshold control 06h 10h R/W
Luminance processing control #1 07h 60h R/W
Luminance processing control #2 08h 00h R/W
Brightness control 09h 80h R/W
Color saturation control 0Ah 80h R/W
Hue control 0Bh 00h R/W
Contrast control 0Ch 80h R/W
Outputs and data rates select 0Dh 47h R/W
Luminance processing control #3 0Eh 00h R/W
Configuration shared pins 0Fh 08h R/W
Reserved 10h
Active video cropping start MSB for unscaled data 11h 00h R/W
Active video cropping start LSB for unscaled data 12h 00h R/W
Active video cropping stop MSB for unscaled data 13h 00h R/W
Active video cropping stop LSB for unscaled data 14h 00h R/W
Genlock/RTC 15h 01h R/W
Horizontal sync start 16h 80h R/W
(1) R = Read only, W = Write only, R/W = Read and write
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