SMC Networks SMC91C95 - page 46

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I/O SPACE - BANK0
OFFSET NAME TYPE SYMBOL
8MEMORY INFORMATION
REGISTER READ ONLY MIR
HIGH
BYTE FREE MEMORY AVAILABLE (IN BYTES * 256 * M)
00011000
LOW
BYTE MEMORY SIZE (IN BYTES *256 * M)
00011000
FREE MEMORY AVAILABLE - This register can
be read at any time to determine the amount of
free memory. The register defaults to the
MEMORY SIZE upon reset or upon the RESET
MMU command.
MEMORY SIZE - This register can be read to
determine the total memory size, and will always
read 18H (6144 bytes) for the SMC91C95.
MEMORY SIZE
REGISTER MACTUAL MEMORY
SMC91C90 FFH 164 kbytes
SMC91C90 40H 116 kbytes
SMC91C92/4 12H 14608 bytes
SMC91C95 18H 16144 bytes
SMC91C100 FFH 2128 kbytes