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ADV7170/ADV7171
Rev. C | Page 49 of 64
APPENDIX 9—RECOMMENDED REGISTER VALUES
The ADV7170/ADV7171 registers can be set depending on the
user standard required.
The following examples give the various register formats for
several video standards.
In each case, the output is set to composite o/p with all DACs
powered up and with the BLANK input control disabled.
Additionally, the burst and color information are enabled on the
output and the internal color bar generator is switched off. In
the examples shown, the timing mode is set to Mode 0 in slave
format. TR02 to TR00 of the Timing Register 0 control the
timing modes. For a detailed explanation of each bit in the
command registers, please see the
section. TR07 should be toggled after setting up a new timing
mode. Timing Register 1 provides additional control over the
position and duration of the timing signals. In the examples,
this register is programmed in default mode.
Table 13. PAL B/D/G/H/I (FSC = 4.43361875 MHz)
Address
Data
00Hex
Mode Register 0
05Hex
01Hex
Mode Register 1
00Hex
02Hex
Mode Register 2
00Hex
03Hex
Mode Register 3
00Hex
04Hex
Mode Register 4
00Hex
07Hex
Timing Register 0
00Hex
08Hex
Timing Register 1
00Hex
09Hex
Subcarrier Frequency Register 0
CBHex
0AHex
Subcarrier Frequency Register 1
8AHex
0BHex
Subcarrier Frequency Register 2
09Hex
0CHex
Subcarrier Frequency Register 3
2AHex
0DHex
Subcarrier Phase Register
00Hex
0EHex
Closed Captioning Ext Register 0
00Hex
0FHex
Closed Captioning Ext Register 1
00Hex
10Hex
Closed Captioning Register 0
00Hex
11Hex
Closed Captioning Register 1
00Hex
12Hex
Pedestal Control Register 0
00Hex
13Hex
Pedestal Control Register 1
00Hex
14Hex
Pedestal Control Register 2
00Hex
15Hex
Pedestal Control Register 3
00Hex
16Hex
CGMS_WSS Register 0
00Hex
17Hex
CGMS_WSS Register 1
00Hex
18Hex
CGMS_WSS Register 2
00Hex
19Hex
Teletext Request Control Register
00Hex
Table 14. PAL M (FSC = 3.57561149 MHz)
Address
Data
00Hex
Mode Register 0
02Hex
01Hex
Mode Register 1
00Hex
02Hex
Mode Register 2
00Hex
03Hex
Mode Register 3
00Hex
04Hex
Mode Register 4
00Hex
07Hex
Timing Register 0
00Hex
08Hex
Timing Register 1
00Hex
09Hex
Subcarrier Frequency Register 0
A3Hex
0AHex
Subcarrier Frequency Register 1
EFHex
0BHex
Subcarrier Frequency Register 2
E6Hex
0CHex
Subcarrier Frequency Register 3
21Hex
0DHex
Subcarrier Phase Register
00Hex
0EHex
Closed Captioning Ext Register 0
00Hex
0FHex
Closed Captioning Ext Register 1
00Hex
10Hex
Closed Captioning Register 0
00Hex
11Hex
Closed Captioning Register 1
00Hex
12Hex
Pedestal Control Register 0
00Hex
13Hex
Pedestal Control Register 1
00Hex
14Hex
Pedestal Control Register 2
00Hex
15Hex
Pedestal Control Register 3
00Hex
16Hex
CGMS_WSS Register 0
00Hex
17Hex
CGMS_WSS Register 1
00Hex
18Hex
CGMS_WSS Register 2
00Hex
19Hex
Teletext Request Control Register
00Hex