Marantz SR5400 - 3 Detailed Description; Connection Format; Physical Connection; Data Transmission Sequence from Host to Slave

Hardware Software Interface (HSI) Page: 4 / 17
SW-A0441-HSI-002 Document Version [1.00b]
Marantz America, Inc. 2007
All rights are reserved. Reproduction in whole or in part is prohibited without the written consent of copyright.
All specifications might be subject to change without notice.
3. Detailed Description
The interface specification between This product and a Host controller is described below.
3-1. Connection format
3-1-1. Physical connection
Host (Controller) Slave (This product)
(Serial setting <RS232C basic>)
Baud Rate : 9600bps
Data Bits : 8bit
Parity : None
Stop bit : 1bit
Handshaking : (RTS/CTS)
3-1-1-1. Data transmission sequence from Host to Slave
Host (Controller) Slave (This product)
RTS → CTS
CTS ← RTS
TxD → RxD
RxD ← TxD
1. The host checks that CTS is High, then starts a data transmission from TxD.
2. The host performs the data transmission of the number of required bytes, and ends a transmission.
* The host can do RTS to Low during the transmission for disable data transmission from a slave.
3-1-1-2. Data transmission sequence from Slave to Host
Host (Controller) Slave (This product)
RTS → CTS
CTS ← RTS
TxD → RxD
RxD ← TxD
1. The slave checks that CTS is High, then starts a data transmission from TxD.
2. The slave performs the data transmission of the number of required bytes, and ends a transmission.
* The slave can do RTS to Low during the transmission for disable data transmission from a host.
RTS
CTS
TxD
RxD
GND
CTS
RTS
RxD
TxD
GND