hmp8156a Intersil Corporation, hmp8156a Datasheet - Page 20

• Manufacturer Part Number: hmp8156a
• Description: Ntsc/pal Video Encoder
• Manufacturer: Intersil Corporation

NUMBER
NUMBER
NUMBER
BIT
BIT
BIT
7-5
2-0
7-6
5-0
4
3
7
6
5
4
3
2
1
0
Reserved
CLK Output Control
Aspect Ratio Mode
Reserved
Closed Captioning
Enable
Reserved
Software Reset
Power Down Enable
NTSC/PAL 2
Output Mode
Closed Caption
Line 21
Write Status
Closed Caption
Line 284
Write Status
NTSC/PAL 1
Output Mode
Y/G
Output Mode
C/B
Output Mode
FUNCTION
FUNCTION
FUNCTION
20
1 = CLK is an output
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 22 for
(B, D, G, H, I, N, CN) PAL
10 = Closed caption enabled for even fields: line 284 for NTSC, line 281 for (M) PAL, or line
335 for (B, D, G, H, I, N, CN) PAL
11 = Closed caption enabled for both odd and even fields
Setting this bit to “1” initiates a software reset. It is automatically reset to a “0” after the reset
sequence is complete.
0 = Normal operation
1 = Power down mode
0 = Enabled
1 = Disabled
0 = Caption_21A and Caption_21B data registers contain unused data
1 = Data has been output, host processor may now write to the registers
0 = Caption_284A and Caption_284B data registers contain unused data
1 = Data has been output, host processor may now write to the registers
0 = Enabled
1 = Disabled
0 = Enabled
1 = Disabled
0 = Enabled
1 = Disabled
0 = CLK is an input
This bit must be set to “0” during BT.656 input mode.
TABLE 17. AUXILIARY DATA ENABLE REGISTER
TABLE 18. HOST CONTROL REGISTER
TABLE 16. TIMING I/O REGISTER #2
HMP8154, HMP8156A
SUB ADDRESS = 05
SUB ADDRESS = 06
SUB ADDRESS = 0F
DESCRIPTION
DESCRIPTION
DESCRIPTION
H
H
H
November 4, 2005
000000
RESET
RESET
RESET
STATE
STATE
STATE
000
00
00
0
0
0
0
0
1
1
0
0
0
B
B
B
B
B
B
B
B
B
B
B
B
B
4343.4
B