VM162/VM172
Chapter 3 Configuration
Juli 23, 1997
Page 3- 3
© PEP Modular Computers
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)
3.1.2 Jumper Default Settings (Solder Side)
Jumper
Default
Setting
Description
J1
Open
Boot from VMEbus memory disabled
J2
Open
Boot from boot ROM disabled
J10
Set
On-board reset generator to VME
J11
Open
Enhanced CXC mode disabled
J8
Open
Protective ground disconnected from signal ground
(solder jumper)
Jumper
Default
Setting
Description
J3
Dependent on
board version
CPU type
J12-J15
Dependent on
board version
CPU power supply
J5-J7
Dependent on
board version
CPU clock speed
J4
Set
24 MHz Comm. Clock connected to 68EN360
J9
Open
EEPROM write protection disabled
J16
1-3
SRAM data retention on
J17
Open
BERR1 timeout 8
µ
s not selected
J18
Open
BERR1 timeout 32
µ
s not selected
J19 and J20
Dependent on
board version
SRAM size
J21
Set
BERR1 timeout 128
µ
s selected
J22
Set
VCB current test bridge
Summary of Contents for VM162
Page 2: ......
Page 6: ...VM162 VM172 Table of Contents Page TOC 4 PEP Modular Computers Juli 23 1997 ...
Page 7: ...VM162 VM172 Juli 23 1997 Page 0 1 PEP Modular Computers Preface ...
Page 12: ...VM162 VM172 Chapter 1 Introduction Page 1 2 PEP Modular Computers Juli 23 1997 ...
Page 62: ...VM162 VM172 Chapter 3 Configuration Page 3 2 PEP Modular Computers Juli 23 1997 ...
Page 72: ...VM162 VM172 Chapter 4 Programming Page 4 2 PEP Modular Computers July 19 1997 ...
Page 117: ...3 OS 9 System Modem 3 1 15 pin Connector 3 2 8 pin RJ45 Connector SMART I O ...
Page 119: ...4 2 Hardware Handshake 4 2 1 15 pin Connector 4 2 2 8 pin RJ45 Connector SMART I O ...