
ÉlanSC310 Microcontroller Evaluation Board User’s Manual
A-2
1.
0
Table A-1. Bus Mode Selection and Affected Jumpers
Table A-2. Configuration Jumpers
1– 512Kx8 Flash can only be supported after a minor board rework. Contact your local AMD
or distributor Field Application Engineer for more information
2– Cannot be set in Full ISA or Local Bus mode.
Bus Mode
Resistor
Pack
Setting
JP16
JP17
JP18
1-2
2-3
1-2
2-3
open
closed
Full ISA
Install
RP1 &
RP2 only
N/A
N/A
Connects
IRQ3
from
Super I/O
N/A
N/A
Connects
IRQ12
from
mouse
Local Bus
Install
RP5 &
RP6 only
2x CPU
clock
N/A
Connects
IRQ3
from
Super I/O
N/A
N/A
Connects
IRQ12
from
mouse
3 Position Jumpers
System Affected
1-2
2-3
JP12
DOS ROM
&
BIOS
Selects Flash
Selects EPROM
device
JP13
DOS sockets
256Kx8
512Kx8
1
JP16
Local Bus mode
CPU clock
2x
N/A
JP17
Super I/O Serial Port
PS/2 Mouse
Enables Super I/O
serial port IRQ
N/A
2
JP18
JP32
BIOS ROM socket
U59 (Phoenix)
U20 (SystemSoft)
evalbd.book : appa Page 2 Thursday, August 8, 1996 2:34 PM