SMC Networks SMC91C95 Product Manual page 46

I/O SPACE - BANK0
OFFSET
8 MEMORY INFORMATION
HIGH
BYTE
0
LOW
BYTE
0
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
SMC91C90
SMC91C90
SMC91C92/4
SMC91C95
SMC91C100
NAME
REGISTER
FREE MEMORY AVAILABLE (IN BYTES * 256 * M)
0 0 1
MEMORY SIZE (IN BYTES *256 * M)
0 0 1
command.
MEMORY SIZE
REGISTER
FFH
40H
12H
18H
FFH
46
TYPE
READ ONLY
1 0
1 0
MEMORY SIZE - This register can be read to
determine the total memory size, and will always
read 18H (6144 bytes) for the SMC91C95.
M ACTUAL MEMORY
1 64 kbytes
1 16 kbytes
1 4608 bytes
1 6144 bytes
2 128 kbytes
SYMBOL
MIR
0 0
0 0