Marantz SR8300 ユーザーズマニュアル
RS232C Control Spec
Page: 4 / 16
SR9300/8300 Document
Version
[2.00]
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)
Host (Controller) Slave (This product)
(Serial setting <RS232C basic>)
Baud Rate
: 4800bps
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.
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.
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
TxD
RxD
GND
CTS
RTS
RxD
TxD
GND
RTS
RxD
TxD
GND