Default Jumper Settings; Jumper Default Settings (Component Side); Jumper Default Settings (Solder Side) - PEP VM162 User Manual

Chapter 3 Configuration

3.1 Default Jumper Settings

The VM162/VM172 has four wire jumpers which can be configured by the user. Additionally, the
VM162/VM172 has a set of solder jumpers which are factory set. The list of default settings are shown
below.

3.1.1 Jumper Default Settings (Component Side)

Jumper
J1
J2
J10
J11
J8

3.1.2 Jumper Default Settings (Solder Side)

Jumper
J3
J12-J15
J5-J7
J4
J9
J16
J17
J18
J19 and J20
J21
J22
Juli 23, 1997
Default
Description
Setting
Open Boot from VMEbus memory disabled
Open Boot from boot ROM disabled
Set On-board reset generator to VME
Open Enhanced CXC mode disabled
Open Protective ground disconnected from signal ground
(solder jumper)
Default
Description
Setting
Dependent on
CPU type
board version
Dependent on
CPU power supply
board version
Dependent on
CPU clock speed
board version
Set 24 MHz Comm. Clock connected to 68EN360
Open EEPROM write protection disabled
1-3 SRAM data retention on
Open BERR1 timeout 8µs not selected
Open BERR1 timeout 32µs not selected
Dependent on
SRAM size
board version
Set BERR1 timeout 128µs selected
Set VCB current test bridge
© PEP Modular Computers
VM162/VM172
Page 3- 3