REFERENCES
5 REFERENCES
5.1RS-232 PARAMETERS
5.1.1Handshaking
Hardware handshaking: (RTS/CTS)
The RTS line is activated by the decoder before transmitting a character. Transmission is possible only if the CTS line (controlled by the Host) is active.
Signals at |
|
EIA levels | RTS |
|
TX |
|
|
| Transmitted data | Transmitted data |
CTS | Host busy | |
| RTS/CTS handshaking |
|
Software handshaking: (XON/XOFF)
During transmission, if the Host sends the XOFF character (13 Hex), the decoder interrupts the transmission with a maximum delay of one character and only resumes when the XON character (11 Hex) is received.
Transmitted data | Transmitted data |
TX
RX
XOFF | XON |
Host busy | Host ready |
XON/XOFF handshaking
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