MB3A

BiSS to PC-LPT ADAPTER

Release A1, Page 2/2

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Fig. 1: MB3A schematic diagram. Jumper JP3_2 can be removed to enable single-ended SL line communication.

(U3 is not assembled).

PC Plug Pin Configuration J1 (25-pole SUB-D)

Pin

LPT Name

Signal

Function

1

nStrobe

ALE

Address latch enable Input

2

Data0

n/a

...

...

...

9

Data7

n/a

10

nAck

n/a

11

Busy

DB1-SO

SPI data output

12

PaperOut

EOT

End-of-transmission output

13

Select

NER

Error message (active low)

14

LineFeed

DB0-SI

SPI data input

15

nError

n/a

16

nInitialize

NCS

Chip select input

17

nSelect

n/a

18

GND

GND

Ground

...

...

...

...

25

GND

GND

Ground

Wiring circuit