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TMP92CM22
2007-02-16
92CM22-238
(4) Memory controller (1/2)
Symbol Name
Address 7 6 5 4 3 2 1 0
B0WW2 B0WW1 B0WW0 B0WR2 B0WR1 B0WR0
W W
0 1 0 0 1 0
B0CSL
Block 0
MEMC
control
register
low
0140H
(Prohibit
RMW)
Write waits
001: 0 waits 010: 1 wait
101: 2 waits 110: 3 waits
111: 4 waits 011:
WAIT pin
Others: Reserved
Read waits
001: 0 waits 010: 1 wait
101: 2 waits 110: 3 waits
111: 4 waits 011:
WAIT pin
Others: Reserved
B0E − − B0REC B0OM1 B0OM0 B0BUS1 B0BUS0
W
0 0 0 0 0 0 0/1 0/1
B0CSH
Block 0
MEMCT
control
register
high
0141H
(Prohibit
RMW)
CS select
0: Disable
1: Enable
Always
write “0”.
Always
write “0”.
0: No insert
dummy
cycle
(Default)
1: Insert
dummy
cycle
00: ROM/SRAM
01: Reserved
10: Reserved
11: Reserved
Data bus width
00: 8 bits
01: 16 bits
10: Reserved
11: Reserved
B1WW2 B1WW1 B1WW0 B1WR2 B1WR1 B1WR0
W W
0 1 0 0 1 0
B1CSL
Block 1
MEMC
control
register
low
0144H
(Prohibit
RMW)
Write waits
001: 0 waits 010: 1 wait
101: 2 waits 110: 3 waits
111: 4 waits 011:
WAIT pin
Others: Reserved
Read waits
001: 0 waits 010: 1 wait
101: 2 waits 110: 3 waits
111: 4 waits 011:
WAIT pin
Others: Reserved
B1E − − B1REC B1OM1 B1OM0 B1BUS1 B1BUS0
W
0 0 0 0 0 0 0/1 0/1
B1CSH
Block 1
MEMC
control
register
high
0145H
(Prohibit
RMW)
CS select
0: Disable
1: Enable
Always
write “0”.
Always
write “0”.
0: No insert
dummy
cycle
(Default)
1: Insert
dummy
00: ROM/SRAM
01: Reserved
10: Reserved
11: Reserved
Data bus width
00: 8 bits
01: 16 bits
10: Reserved
11: Reserved
B2WW2 B2WW1 B2WW0 B2WR2 B2WR1 B2WR0
W W
0 1 0 0 1 0
B2CSL
Block 2
MEMC
control
register
low
0148H
(Prohibit
RMW)
Write waits
001: 0 waits 010: 1 wait
101: 2 waits 110: 3 waits
111: 4 waits 011:
WAIT pin
Others: Reserved
Read waits
001: 0 waits 010: 1 wait
101: 2 waits 110: 3 waits
111: 4 waits 011:
WAIT pin
Others: Reserved
B2E B2M − B2REC B2OM1 B2OM0 B2BUS1 B2BUS0
W
1 0 0 0 0 0 0/1 0/1
B2CSH
Block 2
MEMC
control
register
high
0149H
(Prohibit
RMW)
CS select
0: Disable
1: Enable
0: 16 MB
1: Sets
area
Always
write “0”.
0: No insert
dummy
cycle
(Default)
1: Insert
dummy
cycle
00: ROM/SRAM
01: Reserved
10: Reserved
11: Reserved
Data bus width
00: 8 bits
01: 16 bits
10: Reserved
11: Reserved
B3WW2 B3WW1 B3WW0 B3WR2 B3WR1 B3WR0
W W
0 1 0 0 1 0
B3CSL
Block 3
MEMC
control
register
low
014CH
(Prohibit
RMW)
Write waits
001: 0 waits 010: 1 wait
101: 2 waits 110: 3 waits
111: 4 waits 011:
WAIT pin
Others: Reserved
Read waits
001: 0 waits 010: 1 wait
101: 2 waits 110: 3 waits
111: 4 waits 011:
WAIT pin
Others: Reserved
B3E − − B3REC B3OM1 B3OM0 B3BUS1 B3BUS0
W
0 0 0 0 0 0 0/1 0/1
B3CSH
Block 3
MEMC
control
register
high
014DH
(Prohibit
RMW)
CS select
0: Disable
1: Enable
Always
write “0”.
Always
write “0”.
0: No insert
dummy
cycle
(Default)
1: Insert
dummy
cycle
00: ROM/SRAM
01: Reserved
10: Reserved
11: Reserved
Data bus width
00: 8 bits
01: 16 bits
10: Reserved
11: Reserved