Hardware Installation
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13
t
JP16: Reset Switch
Open
For normal operation.
Close
For hardware reset system.
t
JP17: Power LED and Key-Lock Connector
Pin No.
Function
1
LED anode (+).
2
NC.
3
LED cathode (-).
4
Key lock.
5
GND.
t
JP18: Turbo Switch
Pin No.
Function
Close
For low speed (Non-cache).
Open
For high speed.
t
JP19: Turbo LED Connector
Pin No.
Function
1
LED cathode (+).
2
LED anode (-).
t
JP20: Speaker Connector
Pin No.
Function
1
VCC.
2
NC.
3
GND.
4
Data.
t
JP1
JP2
Second Cache Size Selection
Pin No.
Function
1-2
1-2
Close for 256 KB cache size ( using 32K x 8 SRAM ).
1-2
2-3
Close for 512 KB cache size ( using 64K x 8 SRAM ).
2-3
2-3
Close for 1 MB cache size ( using 128K x 8
SRAM ).
t
JP21: System Speed Selection
Pin No.
Function
1-2
Close for 60 MHz system speed.
2-3
Close for 66 MHz system speed.
