The Transaction Sequences And The Regulations; The Transaction Sequences; The Transaction Regulations; Example Of The Transactions - Marantz SR5400 Specification

SW-A0441-HSI-002

3-3. The transaction sequences and the regulations

3-3-1. The transaction sequences

The transactions have two kinds of sequence.
*A transaction is a Command from Host then the Slave will be an answer by ACK or NAK.
*A transaction is a Status request from Host then the Slave will be an answer by Status answer.

3-3-2. The transaction regulations

The transactions have some kinds of regulation.
* A Command or a Status request transmission by the Host has to finish within one second.
* An answer (ACK, NAK or Status answer) transmittion by the Slave has to finish within one second
when got a Command or a Status request from the Host.
* The Host must not transmit an another Command or Status request until "it receives a answer by a
previous Command or Status request" or "it passes one second from a finishing of previous transmission
of a Command or a Status request ".

3-3-3. Example of the transactions

<Host>
RTS
CTS
TxD
Command
RxD
max. 1sec
a transaction
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Hardware Software Interface (HSI)
max. 1sec
ACK/NAK
Example of the transactions
Marantz America, Inc. 2007
All specifications might be subject to change without notice.
Document Version [1.00b]
Status request
max. 1sec
Status answer
max. 1sec
a transaction
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<Slave>
CTS
RTS
RxD
TxD