Dascom 7206 User Guide Manual de usuario descargar pdf (Pagina 63)

Appendixes

Interfaces

Error Change in the status of a signal line in

compatible mode

Paper end Busy : L  H

PError : L  H

Select : H  L

nFault : H  L

Error other than paper end

Busy : L  H

• Head open PError : L  unchanged

• Other Select : H  L

nFault : H  L

Conditions for Busy • Receive buffer full

• Data being read

• Error

Parallel port status signals when an error occurs

The status of a signal line will not be changed in bi-directional mode such as

nibble or ECP mode.

Compatible timing specification

[When power is on] (Time it goes off-line)

[While receiving data]

Note: Busy rises when *Strobe signal starts, and data is latched with *Strobe

signal starts.

Data0-7

*Strobe

BUSY

0.5µs 0.5µs 0.5µs

Reset

BUSY

*ACK

SELECT

PowerOn

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Dascom 7206 User Guide Manual de usuario Pagina 63