参数资料
型号: TVP5150PBSR
厂商: TEXAS INSTRUMENTS INC
元件分类: 颜色信号转换
英文描述: COLOR SIGNAL DECODER, PQFP32
封装: GREEN, PLASTIC, TQFP-32
文件页数: 22/68页
文件大小: 917K
代理商: TVP5150PBSR
Functional Description
23
May 2006
SLES043A
3.20.2
RTC Mode
Figure 314 shows the timing diagram of the RTC mode. Clock rate for the RTC mode is 4 times slower than
the GLCO clock rate. For PLL frequency control, the upper 22 bits are used. Each frequency control bit is 2
clock cycles long. The active low reset bit occurs 6 CLKs after the transmission of the last bit of PLL frequency
control.
RTC
M
S
B
16 CLK
L
S
B
21
0
128 CLK
22-Bit Fsc Frequency Control
Start
Bit
Reset
Bit
2 CLK
1 CLK
2 CLK
3 CLK
1 CLK
PAL
Switch
44 CLK
Figure 314. RTC Timing
3.21 Internal Control Registers
The TVP5150 device is initialized and controlled by a set of internal registers which set all device operating
parameters. Communication between the external controller and the TVP5150 device is through I2C.
Table 38 shows the summary of these registers. The reserved registers must not be written. However,
reserved bits in the defined registers must be written with 0s. The detailed programming information of each
register is described in the following sections.
Table 38. Registers Summary
REGISTER FUNCTION
ADDRESS
DEFAULT
R/W
Video input source selection #1
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
00h
R/W
Software reset
05h
00h
R/W
Color killer threshold control
06h
10h
R/W
Luminance processing control #1
07h
20h
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
R = Read only
W = Write only
R/W = Read and write
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