Delta Tau PMAC2A-PC/104 Manuál stáhnout pdf (Strana 62)

PMAC2A-PC104 Hardware Manual

Acc-1P Connector Pinouts

J2 (JTHW): Multiplexer Port

Connector

(26-Pin Connector)

Front View

Pin# Symbol Function Description Notes

1 GND Common PMAC Common

2 GND Common PMAC Common

3 DAT0 Input Data-0 Input Data input from multiplexed

accessory

4 SEL0 Output Select-0 Output Multiplexer select output

5 DAT1 Input Data -1 Input Data input from multiplexed

accessory

6 SEL1 Output Select -1 Output Multiplexer select output

7 DAT2 Input Data -2 Input Data input from multiplexed

accessory

8 SEL2 Output Select -2 Output Multiplexer select output

9 DAT3 Input Data -3 Input Data input from multiplexed

accessory

10 SEL3 Output Select -3 Output Multiplexer select output

11 DAT4 Input Data -4 Input Data input from multiplexed

accessory

12 SEL4 Output Select -4 Output Multiplexer select output

13 DAT5 Input Data -5 Input Data input from multiplexed

accessory

14 SEL5 Output Select -5 Output Multiplexer select output

15 DAT6 Input Data -6 Input Data input from multiplexed

accessory

16 SEL6 Output Select -6 Output Multiplexer select output

17 DAT7 Input Data -7 Input Data input from multiplexed

accessory

18 SEL7 Output Select -7 Output Multiplexer select output

19 N.C. N.C. No Connection

20 GND Common PMAC Common

21 N.C. Output Buffer Request Low is "BUFFER REQ."

22 GND Common PMAC Common

23 N.C. Output In Position Low is "IN POSITION"

24 GND Common PMAC Common

25 +5V Output +5VDC Supply Power supply out

26 N.C. Input PMAC Reset Low is "RESET"

The JTHW multiplexer port provides 8 inputs and 8 outputs at TTL levels. While these I/O can be used in

unmultiplexed form for 16 discrete I/O points, most users will utilize PMAC software and accessories to

use this port in multiplexed form to greatly multiply the number of I/O that can be accessed on this port.

In multiplexed form, some of the SELn outputs are used to select which of the multiplexed I/O are to be

accessed.

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 71 72

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