Jumper Definitions; Jumper Descriptions - ADC Super Net S-100 Technical Manual

Jumper Definitions
Jumper Function
~~~---
------------------------------
A CPU clock rate 2mhz/4mhz
B
External/Enternal TX/Rx clock for 510 channel
A
C External/Enternal TX/Rx clock for 510 channel B
o
Eight inch - five inch Drive selection
E
Select 5100 interrupt vector line VI0 OR PINT.
F
Select 5100 interrupt .vector VIO/PINT or parallel
Port B bit 00 on J2-2S.
G Select 5100 interrupt vector VIl or Parallel
Port B bit Dl on J2-27.
H
Select 5100 interrupt vector VI2 or Parallel
Port B bit 02 on J2-29.
J Select 5100 interrupt vector VI3 or Parallel
Port B bit 03 on J2-31.
K
Select 5100 interrupt vector VI4 or Parallel
Port B bit 04 on J2-33.
M Select S100 interrupt vector VIS or Parallel
Port B bit 05 on J2-35.
N Select S100 interrupt vector VI6 or Parallel
Port B bit 06 on J2-37.
P Select
~100
interrupt vector VI7 or Parallel
Port B bit D7 on J2-39.
R Select 2716 or 2732 EPROM.
S Define floppy disk connector for eight ad five inch
drives.
T E n a b l e / Disable 5100 bus memory write signal on
Ji - 68
6.0 Jumper Descriptions
6.1 A CPU clock rate 2mhz/4mhz
This jumper determines the cpu clock rate.
The jumper is 10cated below IC U7.
+---+---+---+
! 1 ! 2 l 3 1
+---+---+---+
Install plug between posts 1 & 2 for 4mhz operation.
Install Plug between posts 2 & 3 for 2mhz operation.
6.2
B
External/internal Tx/RX clock for 510 channel A
Jumper B connects the 510 channel A to either the internal baud rate
generator or to the connector J4 pin 9 for use insycronous applicati<
lS