ch7006c Chrontel, ch7006c Datasheet - Page 34

• Manufacturer Part Number: ch7006c
• Description: Ch7006 Digital Pc To Tv Encoder
• Manufacturer: Chrontel

CHRONTEL
Subcarrier Value Registers
The lower four bits of registers 18H through 1FH contain a 32-bit value which is used as an increment value for the
ROM address generation circuitry. The bit locations are specified as the following:
Register
18H
19H
1AH
1BH
1CH
1DH
1EH
1FH
34
Table 26. Clock Output Selection
Table 27. K3 Selection
SCO[2:0]
000
001
010
011
100
101
110
111
Bit:
Symbol:
Type:
Default:
SHF[2:0]
000
010
100
101
011
110
111
7
Contents
FSCI[31:28]
FSCI[27:24]
FSCI[23:20]
FSCI[19:16]
FSCI[15:12]
FSCI[11:8]
FSCI[7:4]
FSCI[3:0]
Buffered Clock Output
(for test use only)
VCO divided by K3 (see Table 27)
Field ID signal
Sine ROM MSB (for test use only)
(for test use only)
(for test use only)
TV vertical sync (for test use only)
14MHz crystal
K3
2.5
3.5
4.5
4
5
6
7
6
5
4
3
FSCI#
R/W
2
FSCI#
201-0000-026 Rev. 2.8, 6/24/2004
R/W
Address: 18H - 1FH
Bits: 4 or 8 each
Symbol: FSCI
1
FSCI#
R/W
CH7006C
0
FSCI#
R/W