hmp8117 Intersil Corporation, hmp8117 Datasheet - Page 26

• Manufacturer Part Number: hmp8117
• Description: Ntsc/pal Video Decoder
• Manufacturer: Intersil Corporation

NO.
NO.
BIT
BIT
7-6
5-4
3-2
1-0
7-6
5-4
3-2
1-0
Y Filtering
Select
Black Level Y
Coring Select
High Frequency Y
Coring Select
Sharpness
Frequency Select
Sliced
Closed Captioning
Enable
Sliced
WSS Enable
Sliced Teletext
Enable
Reserved
FUNCTION
FUNCTION
26
The chroma trap filter may be used to remove any residual color subcarrier information from the
Y channel. During S-video operation, it should be disabled. During PAL operation, it should be
enabled. The 3MHz low-pass filter may be used to remove high-frequency noise.
00 = No filtering
01 = Enable chroma trap filter
10 = Enable 3.0MHz low-pass filter
11 = reserved
Coring may be used to reduce low-level noise around black in the Y signal.
00 = No coring
01 = 1 code coring
10 = 2 code coring
11 = 3 code coring
Coring may be used to reduce high-frequency low-level noise in the Y signal.
00 = No coring
01 = 1 code coring
10 = 2 code coring
11 = 3 code coring
Specifies the amount of sharpness to be applied per the Sharpness Adjust register 1E
00 = Bypass sharpness control10 = Maximum gain at color F
01 = Maximum gain at 2.6MHz11 = reserved
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, N
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, N
11 = Closed caption enabled for both odd and even fields
00 = WSS disabled
01 = WSS enabled for odd fields: line 20 for NTSC; line 17 for (M) PAL, or line 23 for (B, D, G, H,
I, N, N
10 = WSS enabled for even fields: line 283 for NTSC, line 280 for (M) PAL, or line 336 for (B, D,
G, H, I, N, N
11 = WSS enabled for both odd and even fields
00 = Teletext disabled10 = Teletext system C enabled
01 = Teletext system B enabled11 = Teletext system D enabled
C
) PAL
TABLE 19. SLICED VBI DATA ENABLE REGISTER
C
TABLE 18. LUMA PROCESSING REGISTER
) PAL
C
) PAL
C
) PAL
SUB ADDRESS = 0A
SUB ADDRESS = 08
HMP8117
DESCRIPTION
DESCRIPTION
H
H
SC
H
.
April 19, 2007
RESET
RESET
STATE
STATE
00
00
01
00
00
00
00
00
FN4643.3
B
B
B
B
B
B
B
B