HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 173

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Address Multiplexing: Address multiplexing depends on the setting of the M9/M8 bit in
RFSHCR, as described in table 7-5. Figure 7-4 shows the address output timing. Address output is
multiplexed only in area 3.
Table 7-5 Address Multiplexing
Address Pins
Address signals during row
address output
Address signals during
column address output
Address
bus
Address
bus
Figure 7-4 Multiplexed Address Output (Example without Wait States)
ø
A
A to A
ø
A
A to A
23
8
9
23
to A , A
to A , A
1
10
1
9
0
0
M9/M8 = 0 A
M9/M8 = 1 A
Row address
Row address
A
A
A to A
A to A
23
23
23
23
T
T
8
9
1
1
to A
to A
to A
to A
a. M9/
b. M9/
1
1
10
10
10
10
159
M8
M8
A
A
A
A
9
9
18
9
= 0
= 1
A
A
A
A
A
A
8
9
17
8
23
23
to A , A
T
to A , A
T
A
A
A
A
2
2
7
16
16
7
10
9
Column address
Column address
A
A
A
A
6
15
15
6
0
0
A
A
16
18
A
A
A
A
to A
to A
5
14
14
5
9
10
A
A
A
A
4
13
13
4
T
T
3
3
A
A
A
A
3
12
12
3
A
A
A
A
2
11
11
2
A
A
A
A
1
10
10
1
A
A
A
A
0
0
0
0