HMP8156 Intersil Corporation, HMP8156 Datasheet - Page 18

• Manufacturer Part Number: HMP8156
• Description: Ntsc/pal Encoder
• Manufacturer: Intersil Corporation

NUMBER
NUMBER
NUMBER
BIT
BIT
BIT
7-5
2-0
7-6
5-0
7
6
5
4
3
2
1
0
4
3
BLANK
Timing Select
Reserved
BLANK Output
Control
BLANK
Polarity
HSYNC and
VSYNC Output
Control
HSYNC
Polarity
VSYNC
Polarity
FIELD
Polarity
Reserved
CLK Output Control 0 = CLK is an input
Aspect Ratio Mode
Reserved
Closed Captioning
Enable
Reserved
FUNCTION
FUNCTION
FUNCTION
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)
1 = CLK is an output
This bit must be set to “0” during BT.656 input mode.
0 = Rectangular (BT.601) pixels
1 = Square pixels
00 = Closed caption disabled
01 = Closed caption enabled for odd fields: line 21 for NTSC, line 18 for (M) PAL, or line
10 = Closed caption enabled for even fields: line 284 for NTSC, line 281 for (M) PAL, or
11 = Closed caption enabled for both odd and even fields
TABLE 16. AUXILIARY DATA ENABLE REGISTER
22 for (B, D, G, H, I, N, CN) PAL
line 335 for (B, D, G, H, I, N, CN) PAL
TABLE 14. TIMING I/O REGISTER #1
TABLE 15. TIMING I/O REGISTER #2
SUB ADDRESS = 04
SUB ADDRESS = 05
SUB ADDRESS = 06
HMP8156
18
DESCRIPTION
DESCRIPTION
DESCRIPTION
H
H
H
000000
RESET
RESET
RESET
STATE
STATE
STATE
000
00
00
0
0
0
0
0
0
0
0
0
0
B
B
B
B
B
B
B
B
B
B
B
B
B
B