Denon DCM-5001 Serial Protocol - Page 13

Request System Status

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.3 Request System Status This requests a system status, along with the disc number being transferred or the one installed in the drive. bytebit 7 6 5 4 3 2 1 0 0 STX 02h 1 Command code 0 2 ETX 03h 3 BCCH high-level 4 BCCL low-level Answers returned bytebit 7 6 5 4 3 2 1 0 0 STX 02h 1 Reply code 0 2 Answer code 3 System status code 4 Zone mode ( single zone1dual zone2 ) 5 Zone 1 status 6 Zone 2 status 7 Disc number in zone 1 (100 digits) 8 Disc number in zone 1 (10 digits) 9 Disc number in zone 1 (1 digit) 10 Disc number in zone 2 (100 digits) 11 Disc number in zone 2 (10 digits) 12 Disc number in zone 2 (1 digit) 13 Track number of zone 1 (10 digits) 14 Track number of zone 1 (1 digit) 15 Track number of zone 2 (10 digits) 16 Track number of zone 2 (1 digit) 17 Elapsed time of zone 1 (minutes, 10 digits) 18 Elapsed time of zone 1 (minutes, 1 digit) 19 Elapsed time of zone 1 (second, 10 digits) 20 Elapsed time of zone 1 (second, 1 digit) 21 Elapsed time of zone 1 (frame, 10 digits) 22 Elapsed time of zone 1 (frame, 1 digit) 23 Elapsed time of zone 2 (minutes, 10 digits) 24 Elapsed time of zone 2 (minutes, 1 digit) 25 Elapsed time of zone 2 (second, 10 digits) 26 Elapsed time of zone 2 (second, 1 digit) 27 Elapsed time of zone 2 (frame, 10 digits) 28 Elapsed time of zone 2 (frame, 1 digit) 29 ETX 03h 30 BCCH high-level 31 BCCL low-level Special conditions · If the status parameters of zones 1 and 2 of a specific answer are J ( the CD-TEXT disc is loaded ), the unit shall issue the Request CD-TEXT Name command and acquire new name information. · While this unit runs in the single zone mode, the status of the currently active disc is parametrized as zone 1 status, and the status of the disc on standby as zone 2 status. · If there is no disc on the driver "Disc NO. Parameter" is " 0". · Track NO. Parameters are '0' when there is no disc on the driver ,or the case of not finishing to read the TOC , or at the Stop mode. · A -time parameters are "0" except for play mode, pause mode,or during scanning. · At the standby condition, the unit accepts Request System Status, Power On, Request CPU Version, and Request Error Status commands. In the case of other commands , it returns command format error "1" as the Answer code. · TOC Read OK and Load CD-TEXT Disc zone statuses proceed to the next statuses after sending the Request System Status command. · During cross-fading, the fade-in status is set in the Zone 1 fields and the fade-out status is set in the Zone 2 fields. The fade-out zone status (Zone 2) is 4DH ("M"). The Disk No, Track No, and Time Elapsed fields are all zeros. Other

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.3
Request System Status
This requests a system status, along with the disc number being transferred or the one installed in the drive.
bytebit
7
6
5
4
3
2
1
0
0
STX 02h
1
Command code
0
2
ETX 03h
3
BCCH high-level
4
BCCL low-level
Answers returned
bytebit
7
6
5
4
3
2
1
0
0
STX 02h
1
Reply
code
0
2
Answer code
3
System status code
4
Zone mode ( single zone1dual zone2 )
5
Zone 1 status
6
Zone 2 status
7
Disc number in zone 1 (100 digits)
8
Disc number in zone 1 (10 digits)
9
Disc number in zone 1 (1 digit)
10
Disc number in zone 2 (100 digits)
11
Disc number in zone 2 (10 digits)
12
Disc number in zone 2 (1 digit)
13
Track number of zone 1 (10 digits)
14
Track number of zone 1 (1 digit)
15
Track number of zone 2 (10 digits)
16
Track number of zone 2 (1 digit)
17
Elapsed time of zone 1 (minutes, 10 digits)
18
Elapsed time of zone 1 (minutes, 1 digit)
19
Elapsed time of zone 1 (second, 10 digits)
20
Elapsed time of zone 1 (second, 1 digit)
21
Elapsed time of zone 1 (frame, 10 digits)
22
Elapsed time of zone 1 (frame, 1 digit)
23
Elapsed time of zone 2 (minutes, 10 digits)
24
Elapsed time of zone 2 (minutes, 1 digit)
25
Elapsed time of zone 2 (second, 10 digits)
26
Elapsed time of zone 2 (second, 1 digit)
27
Elapsed time of zone 2 (frame, 10 digits)
28
Elapsed time of zone 2 (frame, 1 digit)
29
ETX 03h
30
BCCH high-level
31
BCCL low-level
Special conditions
•
If the status parameters of zones 1 and 2 of a specific answer are J ( the CD-TEXT disc is loaded
), the unit shall issue the Request CD-TEXT Name command and acquire new name information.
•
While this unit runs in the single zone mode, the status of the currently active disc is
parametrized as zone 1 status, and the status of the disc on standby as zone 2 status.
•
If there is no disc on the driver
“
Disc NO. Parameter
”
is
“
0
”
.
•
Track NO. Parameters are
‘
0
‘
when there is no disc on the driver ,or the case of not finishing to
read the TOC , or at the Stop mode.
•
A -time parameters are
“
0
”
except for play mode, pause mode,or during scanning.
•
At the standby condition, the unit accepts Request System Status, Power On,
Request CPU
Version,
and Request Error Status commands. In the case of other commands , it returns command
format error
“
1
”
as the Answer code.
•
TOC Read OK and Load CD-TEXT Disc zone statuses proceed to the next statuses after
sending the Request System Status command.
•
During cross-fading, the fade-in status is set in the Zone 1 fields and the fade-out status is set
in the Zone 2 fields.
The fade-out zone status (Zone 2) is 4DH ("M").
The Disk No, Track No, and Time
Elapsed fields are all zeros.
Other