Instruction Manual

VMP1 Functional Description

ID 19972, Rev. 0101Page 2 - 16 ® PEP Modular Computers GmbH

2.4.3.5 Serial Interface Expansion Connector and Pinout

The serial interface expansion connector provides the capability to add different front

end interfaces to the UART B signals. For example, an opto-isolated RS422/485 module

(currently under development) may be plugged onto this connector.

Serial Interface Expansion Connector CON3 Pinout

2.4.3.6 Memory Expansion Connector

A 32-pin DIL600 socket is provided in order to make possible the addition

of various memory expansion devices (with access time <120ns). The

devices which have been tested and approved for this connector are as fol-

lows:-

DIL type Flash memory (up to 512 kB)

DIL SRAM (up to 512 kB) e.g. Samsung KM684000BLP-7

NVSRAM (up to 512 kB) e.g. DALLAS DS1250Y-100)

Eprom (up to 512 kB) e.g. 27C040

M-Systems DiskOnChip 2000 (up to 288 MB)

Table 3-5: Serial Interface Expansion Connector (CON3) Pinout

Pin Number Function Function Pin Number

1 GND RTSB 2

3 RE DE 4

5 RxD TxD 6

7 CTS DTR 8

9 SCL SDA 10

11 +3.3V VCC 12

Note:

For the pinout of this connector please see Chapter 4,

section 4.2.1