5 communications clock, 6 eeprom write protection, 7 jtag chain – Kontron VM162 User Manual
Page 69: Communications clock -9, Eeprom write protection -9
VM162/VM172
Chapter 3 Configuration
Juli 23, 1997
Page 3- 9
© PEP Modular Computers
Note: The above solder jumpers describe the basic configuration of the board. They are factory set and
should not be altered by the user. Alteration of these jumpers can result in damage to the board.
3.3.5 Communications Clock
3.3.6 EEPROM Write Protection
The serial EEPROM stores important data, such as the PEP assigned Ethernet address. In order to pre-
vent overwriting, users may set the protection.
3.3.7 JTAG Chain
Jumper
Setting
Description
J4
Set
24 MHz connected to 68EN360 RCLK2 pin
Default
Open
24 MHz disconnected from 68EN360 RCLK2 pin
Jumper
Setting
Description
J9
Set
Serial EEPROM write protected
Open
Serial EEPROM not write protected
Default
Jumper
Setting
Description
J23
1-2
JTAG Chain, CPUs included
1-3
JTAG Chain, CPUs excluded
Default