*ETX-STX Mode
1
STX/ETX Mode Start
|
| Sends ENQ |
| ||
|
|
|
|
| |
|
|
|
| ||
|
| Receives Status | |||
NO |
|
|
|
| |
Data Buffer Empty ? | |||||
| |||||
|
| YES | |||
|
|
|
| ||
|
| Sends STX |
| ||
|
|
|
|
| |
Odd Parity Check ?
YES
Sets Test Byte To
FFH
Exclusive ORs Test Byte and Sent Data
NO
Sets Test Byte To 00
Sends ENQ
Receives Status
Receives Check Byte
Status Error ?
NO
Check Byte
=Test Byte ?
YES
Sends ETX
(Print) |
STX-ETX
Mode End
YES
NO
Sends CAN
NO
Test Byte
Sends Data to Printer
Last Data in 1 Block ?
YES
1
YES
RET
99 | CITIZEN |
