HMP8117 Datasheet, PDF (24/45 Pages) Intersil Corporation – NTSC/PAL Video Decoder

HMP8117
TABLE 12. INPUT FORMAT REGISTER.
BIT
NUMBER
FUNCTION
SUB ADDRESS = 01_H
DESCRIPTION
0
Adaptive Sync Slice This bit specifies whether to use fixed or adaptive sync slicing. Adaptive sync slicing
Enable
automatically determines the midpoint of the sync amplitude to determine timing.
0 = Fixed sync slicing
1 = Adaptive sync slicing
BIT
NUMBER
FUNCTION
7-5
Output Color
Format
4-3
RGB Gamma
Select
2-1
Output Color
Select
0
Reserved
TABLE 13. OUTPUT FORMAT REGISTER.
SUB ADDRESS = 02_H
DESCRIPTION
000 = 16-bit 4:2:2 YCbCr100 = 16-bit RGB
001 = 8-bit 4:2:2 YCbCr101 = reserved
010 = 8-bit parallel BT.656110 = reserved
011 = 15-bit RGB111 = reserved
These bits are ignored except during RGB output modes.
00 = Linear RGB (gamma of input source = 2.2)
01 = Linear RGB (gamma of input source = 2.8)
10 = Gamma-corrected RGB (gamma = gamma of input source)
11 = reserved
00 = Normal operation10 = Output black field
01 = Output blue field11 = Output 75% color bars
Set to “0” for proper operation. Vertical Pixel Siting control is not supported.
BIT
NUMBER
FUNCTION
7
Video Data
Output Enable
6
Video Timing
Output Enable
5
FIELD Polarity
4
BLANK Polarity
3
HSYNC Polarity
2
VSYNC Polarity
1
DVALID Polarity
0
VBIVALID Polarity
TABLE 14. OUTPUT CONTROL REGISTER.
SUB ADDRESS = 03_H
DESCRIPTION
This bit is used to enable the P0-P15 outputs.
0 = Outputs 3-stated. 1 = Outputs enabled
This bit is used to enable the HSYNC, VSYNC, BLANK, FIELD, VBIVALID, DVALID, and
INTREQ outputs. 0 = Outputs 3-stated. 1 = Outputs enabled
0 = Active low (low during odd fields). 1 = Active high (high during odd fields)
0 = Active low (low during blanking). 1 = Active high (high during blanking)
0 = Active low (low during horizontal sync). 1 = Active high (high during horizontal sync)
0 = Active low (low during vertical sync). 1 = Active high (high during vertical sync)
0 = Active low (low during valid pixel data). 1 = Active high (high during valid pixel data)
0 = Active low (low during VBI data). 1 = Active high (high during VBI data)
RESET
STATE
1_B
RESET
STATE
000_B
00_B
00_B
0_B
RESET
STATE
0_B
0_B
0_B
0_B
0_B
0_B
0_B
0_B
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