Hardware manual

EUROCOM-17-5xx 2 Installation

Hardware Manual 45

2.3.9.2 Hardware

Configuration

(S902)

The lower switch (S902) defines the configuration source and the

operation mode. For switch position 0, 1, RMon enters an interactive

mode. If switch S902 is in position 8 to F, the program located in the user

EPROM is called.

S901 and S902 have no direct influence. A changed position becomes only

effective after the next reset (i.e. the software reads the switches and

programs the appropriate registers).

2.3.9.3 System

Controller

Switch (S3)

Table25: Switch S3 (System Controller Switch)

Table24: Hex Switch S902 (Hardware Configuration)

Hex Switch

S902

Function

0 Hardware configuration from basic EPROM

1 Hardware configuration from SRAM

2 Reserved for ELTEC

3 RMon interactive mode on serial port

4 RMon interactive mode on dual-ported RAM

(local address $C000)

5 - 7 Reserved for ELTEC

8 - F Hardware configuration from SRAM and start program in user EPROM.

Hex Switch S3 Function

left System controller disabled

right 'SC' System controller enabled