Pepper Computer Modular Computers RS232 User Manual

SMART I/O User’s Manual

©1996 PEP Modular Computers GmbH

March 12, 1996

Page 3 - 7

Chapter 3  SMART-EXT

There are two sets (one for each module) of SMART-Module piggyback

connectors present on the SMART-EXT, each divided into two sets of 2x8

standard pin rows. The communication to these connectors is achieved in

part via the 10-wire flat-band interface cable and directly by the MCU.

Refer to figure 3.4.0.1 for the correct location of these pin-row connectors.

1

PA1

Port A Pin 1

2

PA2

Port A Pin 2

3

PA3

Port A Pin 3

4

PA4

Port A Pin 4

5

PA5

Port A Pin 5

6

PA6

Port A Pin 6

7

PA7

Port A Pin 7

8

PA8

Port A Pin 8

9

System GND

GND

10

Serial RxD

RxD to SM-BASE

11

System VCC

System +5V VCC

12

Serial TxD

TxD from SM-BASE

13

CS-SLOTA

Chip Select A

14

Serial CLK

CLK from SM-BASE

15

Reset

Power ON/OFF Reset

16

Slot A Interrupt line

INT4 to the
I/O Controller

1

PB1

Port B Pin 1

2

PB2

Port B Pin 2

3

PB3

Port B Pin 3

4

PB4

Port B Pin 4

5

PB5

Port B Pin 5

6

PB6

Port B Pin 6

7

PB7

Port B Pin 7

8

PB8

Port B Pin 8

9

System GND

GND

10

Serial RxD

RxD from SM-BASE

11

System VCC

System +5V VCC

12

Serial TxD

TxD from SM-BASE

13

CS-SLOTB

Chip Select B

14

Serial CLK

CLK from SM-BASE

15

Reset

Power ON/OFF Reset

16

Slot B Interrupt line

Interrupt PI/T (H4)