Marantz SR7400 SR8400 RS-232C Command Codes - Page 7
SR7400/8400, Document Version [1.00]
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SR7400/8400 RS232C Control Spec. Page: 7 / 17 Document Version [1.00] 3-3-4. Examples of the handshaking flowchart 3-3-4-1. Example of successful handshaking HOST Com m and SLAVE Com m and a c c e p ta b le ACK S ta tu s re q u e st R equest a c c e p ta b le S ta tu s answer 3-3-4-2. Example of error handshaking HOST Com m and S ta tu s re q u e st SLAVE Com m and in c o rre c t NAK R equest in c o rre c t NAK
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RS232C Control Spec.
Page: 7 / 17
SR7400/8400
Document Version [1.00]
3-3-4. Examples of the handshaking flowchart
3-3-4-1. Example of successful handshaking
SLAVE
HOST
Com m and
acceptable
Request
acceptable
Com m and
ACK
Status
request
Status
answer
3-3-4-2. Example of error handshaking
SLAVE
HO ST
Com m and
incorrect
Request
incorrect
Com m and
NAK
Status
request
NAK