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68 RabbitCore RCM2300
D.3 External Memory
The sample circuit can be used to access 16 bytes on 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 to create up to four thousand 16-byte pages.
Figure D-4. Sample External Memory Connections
Sample Program: EXTSRAM.C in SAMPLES/RCM2300.
RCM2300
Prototyping Board
SRAM
D0D7
PE7
/IORD
/IOWR
A0A3
A0A3
D0D7
/WE
/OE
/CE
10 kW
Vcc