Bit
Bit name
Function
MEMSIZE[4:0]
Memory size
MEMSIZE[4:0]
Memory size
00000
B
none
a
01001
B
16 MB
(MCS0 default)
00001
B
64 KB
00111
B
4 MB
00010
B
128 KB
01000
B
8 MB
00011
B
256 KB
01010
B
32 MB
00100
B
512 KB
01011
B
64 MB
(MCS1 default)
00101
B
1 MB
01100
B
128 MB
00110
B
2 MB
all other
prohibited
a
No memory connected to chip select n.
External Memory Interface Controller
Chapter 9
Preliminary User's Manual S19203EE1V3UM00
325
Summary of Contents for uPD72257
Page 39: ...Pin Functions Chapter 2 Preliminary User s Manual S19203EE1V3UM00 39...
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Page 52: ...Chapter 2 Pin Functions 52 Preliminary User s Manual S19203EE1V3UM00...
Page 54: ...Chapter 2 Pin Functions 54 Preliminary User s Manual S19203EE1V3UM00...
Page 331: ...External Memory Interface Controller Chapter 9 Preliminary User s Manual S19203EE1V3UM00 331...
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