Chapter 4 HOST INTERFACE
202
Data Polarity
The Data Polarity parameter must be set to match the data polarity
of your host computer.
• Standard. 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 zeros
become ones.
Response Polarity
The Response Polarity parameter must be set to match the
response polarity of your host computer.
• Standard. Does not invert the response signal.
• Inverted. Inverts the response signal sent to the host
computer.
Latch Data On
Specifies whether the data is read on the leading, middle, or trailing
edge of the data strobe signal.
Prime Signal
• Enable. The parallel port will perform a warm start (reboot) if
the host asserts the Prime Signal.
• Disable. The parallel port will not perform a warm start (reboot)
if the host asserts the Prime Signal.
TOF Action
• Reset. A form feed is performed before a warm start when the
prime signal is asserted from the host. This setting is used only
if the Prime Signal parameter is enabled.
• Do Nothing. Nothing occurs before a warm start when the
prime signal is asserted from the host.
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