User's Manual

PMAC2A PC104 Hardware Reference Manual
E-Point Jumper Descriptions
32
E18 – E19: PC/104 Bus Address
E Point and Physical
Layout
Location Description
Default
Jumpers E18 and E19 select the PC/104 bus
address for communications according to
the following table:
No E18 jumper installed;
Jumper E19 installed
E18 E19
Address
(Hex)
Address
(Dec)
OFF OFF $200 512
OFF ON $210 528
ON OFF $220 544
E18
E19
D4
ON ON $230 560
Note:
Jumper E18 must be removed and jumper E19 must be installed for using either
the Ethernet or USB optional methods of communication.
E20-E23: ENCODER SINGLE ENDED/DIFFERENTIAL SELECT
(Note: v107 and above only)
E Point and
Physical Layout
Location Description Default
E20
E21
E22
E23
Jump pin 2 to 3 to obtain differential
encoder input mode. This will bias
encoder negative inputs to VCC = 5V
Jump pin 1 to 2 to obtain non-differential
encoder input mode. This will bias
encoder negative inputs to 1/2 VCC =
2.5V
1-2 Jumper installed