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Rabbit 6000 User’s Manual
digi.com
73
MMU Expanded Code Register
(MECR)
(Address = 0x0018)
Bit(s)
Value
Description
7:5
000
Bank Select Address is A19-A18.
001
Bank Select Address is A20-A19.
010
Bank Select Address is A21-A20.
011
Bank Select Address is A22-A21.
100
Bank Select Address is A23-A22.
101
This bit combination is reserved and should not be used.
110
This bit combination is reserved and should not be used.
111
Bank Select Address is A18-A17.
4
This bit is reserved and should be written with zero. Read returns zeros.
3:0
0000
Normal operation.
0001
This bit combination is reserved and should not be used.
0010
This bit combination is reserved and should not be used.
0011
This bit combination is reserved and should not be used.
0100
For an XPC access, use MB0LCR independent of Bank Select Address.
0101
For an XPC access, use MB1LCR independent of Bank Select Address.
0110
For an XPC access, use MB2LCR independent of Bank Select Address.
0111
For an XPC access, use MB3LCR independent of Bank Select Address.
Содержание 6000
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Страница 234: ...Rabbit 6000 User s Manual digi com 234 Figure 22 3 Sample Slow A D Converter Circuit...
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Страница 420: ...Rabbit 6000 User s Manual digi com 420 Figure 37 1 Memory Read and Write Cycles...