User`s manual

D–4 Sample Circuits RabbitCore RCM2100 Series
D.3 External Memory
The sample circuit can be used with an external 64K memory device. Larger SRAMs can be written to using
this scheme by using other available Rabbit 2000 ports (parallel ports A to E) as address lines.
Sample Program: EXTSRAM2.C in SAMPLES/RCM2100.
Figure D–4: Sample External Memory Connections
RabbitCore
RCM2100
8K × 8
SRAM
D0D7
PE7
/IOR
/IOW
A0A12
BA0BA12
BD0BD7
/WE
/OE
/CE
10 kW
Vcc