TMP91C824
91C824-242
2008-02-20
(4)
Chip select/wait control (1/2)
Symbol
Name
Address
7 6 5 4 3 2 1 0
B0E
B0OM1
B0OM0
B0BUS
B0W2 B0W1 B0W0
W
W W W W W W
0
0 0 0 0 0 0
B0CS
Block 0
CS/WAIT
control
register
C0H
(Prohibit
RMW)
0: Disable
1: Enable
00: ROM/SRAM
01:
10: Reserved
11:
Data bus
width
0: 16 bits
1: 8 bits
000: 2 waits
100: Reserved
001: 1 wait
101: 3 waits
010: (1
+
N) waits 110: 4 waits
011: 0 waits
111: 8 waits
B1E
B1OM1
B1OM0
B1BUS
B1W2 B1W1 B1W0
W
W W W W W W
0
0 0 0 0 0 0
B1CS
Block 1
CS/WAIT
control
register
C1H
(Prohibit
RMW)
0: Disable
1: Enable
00: ROM/SRAM
01:
10: Reserved
11:
Data bus
width
0: 16 bits
1: 8 bits
000: 2 waits
100: Reserved
001: 1 wait
101: 3 waits
010: (1
+
N) waits 110: 4 waits
011: 0 waits
111: 8 waits
B2E B2M B2OM1
B2OM0
B2BUS
B2W2 B2W1 B2W0
W W W W W W W W
1 0 0 0 0 0 0 0
B2CS
Block 2
CS/WAIT
control
register
C2H
(Prohibit
RMW)
0: Disable
1: Enable
0: 16 M
area
1: Area
set
00: ROM/SRAM
01:
10: Reserved
11:
Data bus
width
0: 16 bits
1: 8 bits
000: 2 waits
100: Reserved
001: 1 wait
101: 3 waits
010: (1
+
N) waits 110: 4 waits
011: 0 waits
111: 8 waits
B3E
B3OM1
B3OM0
B3BUS
B3W2 B3W1 B3W0
W
W W W W W W
0
0 0 0 0 0 0
B3CS
Block 3
CS/WAIT
control
register
C3H
(Prohibit
RMW)
0: Disable
1: Enable
00: ROM/SRAM
01:
10: Reserved
11:
Data bus
width
0: 16 bits
1: 8 bits
000: 2 waits
100: Reserved
001: 1 wait
101: 3 waits
010: (1
+
N) waits 110: 4 waits
011: 0 waits
111: 8 waits
BEXBUS
BEXW2 BEXW1 BEXW0
W W W W
0 0 0 0
BEXCS
External
CS/WAIT
control
register
C7H
(Prohibit
RMW)
Data bus
width
0: 16 bits
1: 8 bits
000: 2 waits
100: Reserved
001: 1 wait
101: 3 waits
010: (1
+
N) waits 110: 4 waits
011: 0 waits
111: 8 waits
S23 S22 S21 S20 S19 S18 S17 S16
R/W
1 1 1 1 1 1 1 1
MSAR0
Memory
start
address
register 0
C8H
Start address A23 to A16
V20 V19 V18 V17 V16 V15
V14
to
V9
V8
R/W
1 1 1 1 1 1 1 1
MAMR0
Memory
address
mask
register 0
C9H
CS0 area size 0: enable to address comparison
S23 S22 S21 S20 S19 S18 S17 S16
R/W
1 1 1 1 1 1 1 1
MSAR1
Memory
start
address
register 1
CAH
Start address A23 to A16
V21 V20 V19 V18 V17 V16
V15
to
V9
V8
R/W
1 1 1 1 1 1 1
MAMR1
Memory
address
mask
register 1
CBH
CS1 area size 0: Enable to address comparison