Citizen Systems iDP3110 Benutzerhandbuch

iDP3110 User's Manual

 CITIZEN

12

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Input signal

All input signals utilize type 74HC of CMOS and can be used in TTL level as the input is pulled up with 3.3 k

Ω

resistance.
- DATA 

8 bit parallel signal (positive logic)

- STB        

Strobe signal for reading out data (negative logic)

- RESET     

Signal for resetting the entire unit (negative logic 4ms or more)

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Output signal

TTL is utilized for all output signals. The output is pulled up with 3.3 k

Ω

 resistance.

- ACK        

Signal for requesting data. ACK is issued at the end of the BUSY signal (negative logic)

- 

BUSY 

 

 

 

 

 

  Signal indicating the printer is busy. Input new data when the signal is in “LOW”

condition.(positive logic)

- SELECT     Signal indicating the printer is set to a selected condition (on-line). “HIGH” state signifies the

printer is selected.

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Others

- GND

The common circuit ground.

- FG

Equivalent to “case ground”.

•

 Input

     [ Printer side ] 

[ Host side ]

DATA :  74HC373 equivalent
STB :      74HC14 equivalent
RESET : 74HC04 equivalent