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Appendixes – Dascom 7106 User Guide User Manual

Page 54

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Appendixes

54

Interfaces

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

0.5

µs

0.5

µs

0.5

µs

Reset

BUSY

*ACK

SELECT

PowerOn

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.

See also other documents in the category Dascom Printers: