6.2 Serial Interface
6.2.1Specifications
(1)Data transfer system: Asynchronous
(2)Baud rates
150, 300, 600, 1200, 2400, 4800, 9600, 19200 bps (Selectable by user)
(3) | Configuration of one word |
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| Start bit | : | 1 bit |
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| Data bit | : | 7 bits or 8 bits (Selectable by user)) | |||
| Parity bit | : | Add/even or no parity | (Selectable by user) | ||
| Stop bit | : | 1 bit or more |
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(4) | Signal polarity |
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| • | Mark |
| = Logic " 1" | - | |
| • | Space |
| = Logic " 0" (+3V | - | +12V) |
(5)Receive data (RD signal)
• | Mark | = 1 |
• | Space | = 0 |
(6)Data receiving control (DTR signal)
• | Mark | : | Data transfer not available | |
• | Space | : | Data transfer available | |
(7) Data transmission control (TD signal) | ||||
DC1 code (11H) | : Data reception available | |||
DC3 code (13H) |
| : Data reception not available | ||
CITIZEN | 37 |
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