User Guide

Revision1.0 DN-C635 Serial Interface Specification
Date 2003-01-28 13 page of 39
2.6.3 REQUEST CD PLAY STATUS command
Using this command, the host can get CD player information. The host shall send this command
repeatedly to sense the CD player’s status.
1) Command format
byte/bit 7 6 5 4 3 2 1 0
0 STX( 0x02 )
1 Command code (‘0’)
2 CD Time Code(Elapsed : ‘0’, Remain : ‘1’, Total Remain : ‘2’)
3 Reserve( 0x00 )
4 Reserve( 0x00 )
5 Reserve( 0x00 )
6 ETX( 0x03 )
7 BCCH( high-level )
8 BCCL( low-level )
Table 9. Request CD Status command
2) Answer format
byte/bit 7 6 5 4 3 2 1 0
0 STX (0x02)
1 Reply code (‘0’)
2 Answer code (Table 3)
3 [System] System Status (Table 4)
4 [CD] Disc type code (Table 11)
5 [CD] Audio format code (Table 12)
6 [CD] Status code (Table 4)
7 [CD] Play mode code (Table 14)
8 [CD] Folder number (100 digits)
9 [CD] Folder number ( 10 digits)
10 [CD] Folder number ( 1 digits)
11 [CD] Track number (100 digits)
12 [CD] Track number ( 10 digits)
13 [CD] Track number ( 1 digits)
14 Reserve( 0x00 )
15 Reserve( 0x00 )
16 [CD] Elapsed / Remain time (minutes, 100 digits)
17 [CD] Elapsed / Remain time (minutes, 10 digits)
18 [CD] Elapsed / Remain time (minutes, 1 digits)
19 [CD] Elapsed / Remain time (second, 10 digits)
20 [CD] Elapsed / Remain time (second, 1 digits)
21 Reserve( 0x00 )
22 Reserve( 0x00 )
23 Reserve( 0x00 )
24 Reserve( 0x00 )
25 Reserve( 0x00 )
26 Reserve( 0x00 )
27 Reserve( 0x00 )
28 Reserve( 0x00 )
29 ETX (0x03)
30 BCCH ( high-level )
31 BCCL ( low-level )
Table 10. Request CD Status answer