Denon DCM 390 Serial Protocol - Page 13

Command specification

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Revision1.40 Date 24.May.'07 2.6 Command specification DCM390 Serial Interface Specification 13 page of 40 2.6.1 RESET command This command resets the device. After RESET command the device will do some operations for reset and return Answer code. At last the device resets itself. 1) Command format Byte/bit 7 6 5 4 3 2 1 0 0 STX (0x02) 1 Command code ('SP') 2 Reserve (0x00) 3 Reserve (0x00) 4 Reserve (0x00) 5 Reserve (0x00) 6 ETX (0x03) 7 BCCH (high-level) 8 BCCL (low-level) Table 5. Reset command 2) Answer format Byte/bit 7 6 5 4 3 2 1 0 0 STX (0x02) 1 Reply code ('SP') 2 Answer code (Table 3) 3 ETX (0x03) 4 BCCH (high-level) 5 BCCL (low-level) Table 6. Reset answer 3) Special condition This device cannot receive any commands within 2 seconds after this command is sent. After Reset command, the host shall wait the device becomes ready status. The device returns not Ready status for Request Status command before get ready. D&M

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Revision1.40
DCM390 Serial Interface Specification
Date 24.May.’07
13 page of 40
2.6
Command specification
2.6.1 RESET command
This command resets the device. After
RESET
command the device will do some operations for reset
and return Answer code. At last the device resets itself.
1) Command format
Byte/bit
7
6
5
4
3
2
1
0
0
STX (0x02)
1
Command code (‘SP’)
2
Reserve (0x00)
3
Reserve (0x00)
4
Reserve (0x00)
5
Reserve (0x00)
6
ETX (0x03)
7
BCCH (high-level)
8
BCCL (low-level)
Table 5. Reset command
2) Answer format
Byte/bit
7
6
5
4
3
2
1
0
0
STX (0x02)
1
Reply code (‘SP’)
2
Answer code (Table 3)
3
ETX (0x03)
4
BCCH (high-level)
5
BCCL (low-level)
Table 6. Reset answer
3) Special condition
This device cannot receive any commands within 2 seconds after this command is sent.
After Reset command, the host shall wait the device becomes ready status. The device returns
not Ready
status for Request Status command before get ready.