Renesas M16C/62P Hardware Manual page 78

M16C/62P Group (M16C/62P, M16C/62PT)
Microprocessor mode
ROM address
000000h
040000h
080000h
0C0000h
100000h
140000h
180000h
Data
1C0000h
200000h
240000h
280000h
2C0000h
300000h
340000h
380000h
Program
or data
3C0000h
Program
or data
3FFFFFh
Figure 9.9 Relationship Between Addresses on 4-Mbyte ROM and Those on Microcomputer (3)
R e . v 2 3 . 0 S e p 0 , 1 2 0 0 4
R E J 0 9 B 0 1 8 5 0 - 2 3 0 Z
Microcomputer address
OFS bit in DBR OFS bit in DBR
register = 1
register = 0
40000h
bank 0
(512 Kbytes)
40000h
bank 0
BFFFFh
(512 Kbytes)
40000h
BFFFFh
bank 1
(512 Kbytes)
40000h
BFFFFh
bank 1
(512 Kbytes)
40000h
BFFFFh
bank 2
(512 Kbytes)
40000h
BFFFFh bank 2
(512 Kbytes)
40000h
BFFFFh
bank 3
(512 Kbytes)
40000h
BFFFFh
bank 3
40000h
(512 Kbytes)
bank 4
BFFFFh
(512 Kbytes)
40000h
BFFFFh
bank 4
40000h
(512 Kbytes)
bank 5
BFFFFh
(512 Kbytes)
40000h
BFFFFh
bank 5
40000h
(512 Kbytes)
bank 6 BFFFFh
(512 Kbytes)
40000h
BFFFFh
bank 6
40000h
(512 Kbytes)
bank 7
(512 Kbytes)
BFFFFh
7FFFFh
C0000h
FFFFFh
page 64
f o 3 6 4
9. Memory Space Expansion Function
Output from the Microcomputer Pins
Bank Access
OFS
CS Output
Number Area
CS3 CS2 CS1
40000h 0 0
0
0 0
BFFFFh
0
40000h
0 0
1
BFFFFh
0 0
40000h 0 0
0
BFFFFh 0 0
1
40000h 0 0
1
0 1
BFFFFh
0 1
40000h
0
0 1
BFFFFh
2
40000h
0 1
1
0 1
BFFFFh
40000h 0 1
0
BFFFFh
0 1
3
40000h 0 1
1
BFFFFh
1 0
40000h
1 0
0
BFFFFh
1 0
4
40000h
1 0
1
BFFFFh 1 0
40000h
1 0
0
1 0
BFFFFh
5
1 0
40000h
1
BFFFFh 1 1
40000h
1 1
0
BFFFFh 1 1
6
40000h
1 1
1
BFFFFh
1 1
40000h 1 1
1 1
7FFFFh
80000h 1 1
7 0
1 1
BFFFFh
C0000h
1 1
FFFFFh 1 1
A21 A20 A19
N.C.: No connected
Address Output
A19 A18 A17 A16 A15 to A0
0 0 1 0 0 0000h
0 1 0 1 1
FFFFh
1
0 0 0 0 0000h
0
1 1 1 1 FFFFh
1 0 1 0 0 0000h
1
1 0 1 1 FFFFh
1 1 0 0 0 0000h
0 0 1 1 1 FFFFh
0 0 1 0 0 0000h
0 1 0 1 1 FFFFh
1
0 0 0 0 0000h
1 0 1 1 1 FFFFh
0
1 1 0 0 0000h
1
1 0 1 1 FFFFh
1 1 0 0 0 0000h
0
0 1 1 1 FFFFh
0
0 1 0 0 0000h
1
0 0 1 1 FFFFh
1
0 0 0 0 0000h
1 0 1 1 1 FFFFh
0
1 1 0 0 0000h
1 1 0 1 1 FFFFh
1 1 0 0 0 0000h
0 0 1 1 1 FFFFh
0
0 1 0 0 0000h
0 1 0 1 1 FFFFh
1
0 0 0 0 0000h
0
1 1 1 1 FFFFh
1 0 1 0 0 0000h
1 0 1 1 1 FFFFh
1 1 0 0 0 0000h
1 1 0 1 1 FFFFh
1
1 1 0 0 0000h
1 1 1 1 1 FFFFh
A18 N.C. A17 A16 A15 to A0
Address Input for
Address Input for 4-Mbyte ROM
000000h
07FFFFh
040000h
0BFFFFh
080000h
0FFFFFh
0C0000h
13FFFFh
100000h
17FFFFh
140000h
1BFFFFh
180000h
1FFFFFh
1C0000h
23FFFFh
200000h
27FFFFh
240000h
2BFFFFh
280000h
2FFFFFh
2C0000h
33FFFFh
300000h
37FFFFh
340000h
3BFFFFh
380000h
3BFFFFh
3C0000h
3FFFFFh
3C0000h
3FFFFFh
4-Mbyte ROM