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Parallel interface, 1. interface specifications, 2. interface timing – Star Micronics RS232 User Manual

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5. PARALLEL INTERFACE

5-1. Interface Specifications

Interface:

Conforms with Centronics parallel interface standard

Data transfer speed:

1000 ~ 5000 CPS

Synchronization:

External strobe pulse

Handshaking:

Using ACK and BUSY

Logic level:

TTL-level compatible

5-2. Interface Timing

T

T

T

A C K

DATA

STROBE

BUSY

T: At least 0.5ms

Approx. 9ms

PARALLEL