HMP8156ACN(2009) 查看數據表（PDF） - Intersil
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HMP8156ACN Datasheet PDF : 34 Pages
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HMP8154, HMP8156A
BIT
NUMBER
FUNCTION
7-5
Input Format
4
Gamma
Select
3
Reserved
2-1
Overlay Mixing
Mode
0
Input Resolution
TABLE 13. INPUT FORMAT REGISTER
SUB ADDRESS = 02H
DESCRIPTION
000 = 16-bit 4:2:2 YCbCr
001 = 8-bit 4:2:2 YCbCr
010 = 8-bit BT.656
011 = 16-bit linear RGB
100 = 16-bit gamma-corrected RGB
101 = 24-bit linear RGB
110 = 24-bit gamma-corrected RGB
111 = Blue screen
These bits are ignored except during linear RGB input modes.
0 = 1 / 2.2
1 = 1 / 2.8
These bits must be set to “11” in 24-bit RGB input modes. Internal mixing should not be
selected in BT.656 input mode.
00 = No mixing
01 = Internal mixing
10 = External mixing
11 = Disable overlays
This bit must be set to “0” during BT.656 input mode and when the flicker filter is enabled.
0 = Full resolution (2X upscaling disabled)
1 = SIF resolution (2X upscaling enabled)
TABLE 14. VIDEO PROCESSING REGISTER
BIT
NUMBER
FUNCTION
SUB ADDRESS = 03H
DESCRIPTION
7
Luminance
Processing
0 = None
1 = Y Lowpass filtering enabled
6
Composite Video
0 = None
Limiting
1 = Lower limit of composite active video is about half the sync height
5
SCH Phase
Mode
0 = Never reset SCH phase
1 = Reset SCH phase every 4 (NTSC) or 8 (PAL) fields
4
RGB Pedestal
Enable
0 = Don’t add blanking pedestal to RGB output
1 = add blanking pedestal to RGB output
3
RGB pin Assignment 0 = use HMP8156 assignments
select
1 = SCART connector compatible
2
First Active
Line Select
This bit is ignored unless flicker filtering is enabled. This bit is ignored on the HMP8156.
0 = First line of active video in odd fields is on an odd line number
1 = First line of active video in odd fields is on an even line number
1-0
Flicker Filter
Processing
These bits must be “00” during 8-bit YCbCr and BT.656 input modes, and SIF input resolution
mode. These bits are always “00” on the HMP8156A.
00 = No flicker filtering
01 = reserved
10 = reserved
11 = 3-line flicker filtering enabled
RESET
STATE
000B
0B
0B
11B
0B
RESET
STATE
1B
0B
1B
0B
0B
0B
00B
19
FN4343.5
August 20, 2009
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