Chapter 4 HOST INTERFACE
PI Ignored
The PI (Paper Instruction) signal is used to control vertical paper motion.
•Enable (default). Ignores the PI signal and treats the data as characters or control codes.
•Disable. Causes the printer to interpret the eight data lines as VFU commands when the PI signal is true.
Data Polarity
The Data Polarity parameter must be set to match the data polarity of your host computer.
•Standard (default). Does not expect the host computer to invert the data.
•Inverted. Expects the data received on the data lines from the host computer to be inverted. Ones become zeros, and vice versa.
Resp. Polarity
The Resp. Polarity parameter must be set to match the response polarity of your host computer.
•Standard (default). Does not invert the response signal.
•Inverted. Inverts the response signal sent to the host computer.
Busy On Strobe
•Enable (default). Asserts a busy signal after each character is received.
•Disable. Asserts a busy signal only when the print buffers are full.
Latch Data On
Specifies whether the data is read on the leading or trailing edge of the data strobe signal.
92
