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Sockets are available for standard 32-pin byte-wide memory devices, including the 128k
x 8, 256k x 8 and 512k x 8 type devices.
The two JEDEC sockets for EPROM are accessible for read cycles, write cycles have no
effect.
The two JEDEC sockets for SRAM are accessible for read and write cycles. The upper and
lower bytes can be read and written independently.
The XC24C04 EEPROM is of the serial access type and is read and written using 3 I/O lines of the DUART. The data retention is specified to be greater than 100 years.
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