HMP8170CN Intersil Corporation, HMP8170CN Datasheet - Page 16

• Manufacturer Part Number: HMP8170CN
• Description: NTSC/PAL Video Encoder
• Manufacturer: Intersil Corporation

NUMBER
NUMBER
NUMBER
4 - 0
BIT
BIT
BIT
7-5
2-0
7
6
5
4
3
7
6
5
4
3
2
1
0
Input Format
Reserved
Luminance
Processing
Composite Video
Limiting
SCH Phase
Mode
RGB / YUV
Setup Select
RGB Output
Pins Select
Reserved
BLANK
Timing Select
Reserved
BLANK Output
Control
BLANK
Polarity
HSYNC and
VSYNC Output
Control
HSYNC
Polarity
VSYNC
Polarity
FIELD
Polarity
FUNCTION
FUNCTION
FUNCTION
16
000 = 16-bit 4:2:2 YCbCr
001 = 8-bit 4:2:2 YCbCr
010 = 8-bit BT.656
011 = Reserved
100 = Reserved
101 = Reserved
110 = Reserved
111 = Reserved
0 = None
1 = Y Lowpass filtering enabled
0 = None
1 = Lower limit of composite active video is about half the sync height
0 = Never reset SCH phase
1 = Reset SCH phase every 4 (NTSC) or 8 (PAL) fields
This bits specifies the blanking pedestal on the analog RGB and YUV outputs during active
video. Typically, this bit should be a “1” during (M) NTSC and (M, N) PAL operation. Otherwise,
it should be a “0”. This bit does not affect the analog composite or Y/C outputs.
0 = 0 IRE
1 = 7.5 IRE
This bit configures on what pins the analog RGB video is output.
0 = HMP8156 compatible
1 = SCART compatible
This bit is ignored unless BLANK is configured to be an output.
0 = Data for the first active pixel of the scan line must arrive the CLK cycle after the encoder
negates BLANK.
1 = Data for the first active pixel of the scan line must arrive immediately after the encoder
negates BLANK.
0 = BLANK is an input
1 = BLANK is an output
0 = Active low (low during blanking)
1 = Active high (high during blanking)
0 = HSYNC and VSYNC are inputs
1 = HSYNC and VSYNC are outputs
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 odd fields)
1 = Active high (high during odd fields)
HMP8170, HMP8171, HMP8172, HMP8173
TABLE 17. VIDEO PROCESSING REGISTER
TABLE 16. INPUT FORMAT REGISTER
TABLE 18. TIMING I/O REGISTER #1
SUB ADDRESS = 02
SUB ADDRESS = 03
SUB ADDRESS = 04
DESCRIPTION
DESCRIPTION
DESCRIPTION
H
H
H
RESET
00000
RESET
RESET
STATE
STATE
STATE
000
000
1
0
1
0
0
0
0
0
0
0
0
0
0
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B
B