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ASTRO VG-871 - LVCHIP4 [20 H 47 H]: V-Chip Data Acquisition

ASTRO VG-871
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Chapter 2 INDIVIDUAL FORMATS FOR VG CONTROL COMMANDS
101
2.40 LVCHIP4 [20H 47H]: V-Chip data acquisition
Function: This command gets the V-Chip data of the designated program number.
When the program number is 0, it reads out the data from the buffer RAM.
When the program has any number from 1001 to 2000, the command reads
out the data from the fixed data. When the program number is 9999, the
command reads the data from the command work RAM.
Sequence: Type 3
Command:
STX
1 byte
02H
VG4CMD
1 byte
FDH
LVCHIP4
2 bytes
20H 47H
Program number
1 to 4 bytes
“0” to “2000”, “9999”
ETX
1 byte
03H
Fig. 2-40-1
Data:
STX
1 byte
02H
TRDT
1 byte
10H
Mode
1 byte
“0” to “4”
,
1 byte
2CH (Delimiter)
MPAA Rate
1 byte
“0” to “7”
,
1 byte
2CH (Delimiter)
USTV Rate
1 byte
“0” to “7”
,
1 byte
2CH (Delimiter)
USTV Ext. Rate
1 byte
40H to 5FH *1
,
1 byte
2CH (Delimiter)
English Rate
1 byte
“0” to “6”
,
1 byte
2CH (Delimiter)
French Rate
1 byte
“0” to “5”
,
1 byte
2CH (Delimiter)
Interval
1 or 2 bytes
“0” to “60”
ETX
1 byte
03H
Fig. 2-40-2
Data contents are as below.
Example 1) When all off : 0
Example 2) When only FV is On : 16
Example 3) when V and L are On : 10
Example 4) When V, S, L are On : 14

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