Smart Module Piggyback Connectors - PEP Modular Computers Modular Computers RS485 User Manual

Chapter 3 SMART-EXT

3.4.1 SMART Module Piggyback Connectors

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.
Pinouts digital side (ST1 and ST3)
Refer to figure 3.4.0.1 for the correct location of these pin-row connectors.
Slot A from 68HC05C4 MCU port A (ST1)
Pin Nr. Signal
1 PA1
3 PA3
5 PA5
7 PA7
9 System GND GND
11 System VCC
13 CS-SLOTA
15 Reset
Slot B from 68HC05C4 MCU port B (ST3)
Pin Nr. Signal
1 PB1
3 PB3
5 PB5
7 PB7
9 System GND GND
11 System VCC
13 CS-SLOTB
15 Reset
March 12, 1996
Description Pin Nr.
Port A Pin 1
Port A Pin 3
Port A Pin 5
Port A Pin 7
System +5V VCC
Chip Select A
Power ON/OFF Reset
Description Pin Nr.
Port B Pin 1
Port B Pin 3
Port B Pin 5
Port B Pin 7
System +5V VCC
Chip Select B
Power ON/OFF Reset
©1996 PEP Modular Computers GmbH
SMART I/O User's Manual
Signal
2 PA2
4 PA4
6 PA6
8 PA8
10 Serial RxD
12 Serial TxD
14 Serial CLK
16 Slot A Interrupt line
Signal
2 PB2
4 PB4
6 PB6
8 PB8
10 Serial RxD
12 Serial TxD
14 Serial CLK
16 Slot B Interrupt line
Description
Port A Pin 2
Port A Pin 4
Port A Pin 6
Port A Pin 8
RxD to SM-BASE
TxD from SM-BASE
CLK from SM-BASE
INT4 to the
I/O Controller
Description
Port B Pin 2
Port B Pin 4
Port B Pin 6
Port B Pin 8
RxD from SM-BASE
TxD from SM-BASE
CLK from SM-BASE
Interrupt PI/T (H4)
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