Справочник Пользователя для Star Micronics SP300
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3-1. Interface Specifications
This printer has a parallel interface to communicate with the computer. The
operating specifications of the parallel interface are as follows.
operating specifications of the parallel interface are as follows.
(1) Data transfer rate
: 1000 to 6000 characters per second
(2) Synchronization
: Via externally supplied STROBE pulses
(3) Handshaking
: ACK and BUSY signals
(4) Logic level
: Compatible with TTL level
3-2. Interface Timing
Fig. 3-1 Interface timing diagram
3. PARALLEL INTERFACE
T
T
T
A C K
Data
STROBE
BUSY
T:more than 0.5 microsec.
About 9
ms