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7.3.4Data Receiving Control
If DTR/DSR control has been selected, the data from the host side will be received when the BUSY signal is at "Low," but not received when at "High." If DTR/DSR has not been selected, the data from the host side will be received after sending XON, but not after sending XOFF.
7.3.5Buffering
To transfer the data to the input buffer, there are two control signals available: DTR signal and TXD signal. The host side is immediately freed, since the data can be buffered up to 2 KB.
(1)DTR signal (See
(2)TXD signal (See
7.3.6Electrical Characteristics
Input (RXD, DSR)
[Printer Side] | [Host Side] |
RXD
Equivalent MAX232
Output (TXD, DTR)
Space=(+8V): Start bit
[Printer Side] | [Host Side] |
| Equivalent to MAX232 |
|
| |
DTR | TXD | |||
Space=(+8V): At Busy | Space=(+8V): 0 | |||
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41 | CITIZEN |