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M16C/64C Group
Memory expansion mode where the PM13 bit is 0
ROM address
000000h
040000h
080000h
0C0000h
100000h
140000h
180000h
Data only
1C0000h
200000h
240000h
280000h
2C0000h
300000h
340000h
380000h
Program
or data
3C0000h
Program
or data
3FFFFFh
Figure 12.6
Relationship between Addresses in 4-MB ROM and Those in MCU (1/3)
R01UH0092EJ0110 Rev.1.10
Jul 31, 2012
MCU address
OFS bit in DBR
OFS bit in DBR
Number
register = 0
register = 1
40000h
bank
0
(512 KB)
40000h
BFFFFh
bank
0
(512 KB)
40000h
BFFFFh
bank
1
(512 KB)
40000h
BFFFFh
bank
1
(512 KB)
40000h
BFFFFh
bank
2
(512 KB)
40000h
BFFFFh
bank
2
(512 KB)
40000h
BFFFFh
bank
3
(512 KB)
40000h
BFFFFh
bank
3
40000h
(512 KB)
BFFFFh
bank
4
(512 KB)
40000h
BFFFFh
bank
4
40000h
(512 KB)
BFFFFh
bank
5
(512 KB)
40000h
BFFFFh
bank
5
40000h
(512 KB)
BFFFFh
bank
6
(512 KB)
40000h
BFFFFh
bank
6
40000h
(512 KB)
BFFFFh
bank
7
(512 KB)
BFFFFh
12. Memory Space Expansion Function
Output from the MCU Pins
Bank
Access
CS Output
OFS
Area
CS3
CS2
CS1
40000h
0
0
0
0
BFFFFh
0
0
0
0
40000h
0
0
0
1
BFFFFh
0
0
1
0
0
1
40000h
0
BFFFFh
0
0
1
1
40000h
0
0
1
1
BFFFFh
0
1
0
40000h
0
1
0
0
BFFFFh
0
1
0
2
40000h
0
1
0
1
BFFFFh
1
0
1
40000h
0
1
1
0
BFFFFh
0
1
1
3
40000h
0
1
1
1
BFFFFh
1
0
0
40000h
1
0
0
0
BFFFFh
1
0
0
4
40000h
1
0
0
1
BFFFFh
1
0
1
40000h
1
0
1
0
BFFFFh
1
0
1
5
40000h
1
0
1
1
BFFFFh
1
1
0
40000h
1
1
0
0
BFFFFh
1
1
0
6
40000h
1
1
0
1
BFFFFh
1
1
1
40000h
1
1
1
7FFFFh
1
1
1
80000h
1
1
1
BFFFFh
1
1
1
7
0
C0000h
1
1
1
CFFFFh
1
1
1
D0000h
DFFFFh
D0000h
DFFFFh
A21
A20
A19
Address input for 4-MB ROM
Address Output
A19
A18
A17
A16 A15 to A0
000000h
0
1
0
0
0000h
07FFFFh
1
0
1
1
FFFFh
040000h
1
0
0
0
0000h
0BFFFFh
0
1
1
1
FFFFh
0000h
080000h
0
1
0
0
0FFFFFh
1
0
1
1
FFFFh
0000h
0C0000h
1
0
0
0
13FFFFh
0
1
1
1
FFFFh
0000h
100000h
0
1
0
0
17FFFFh
1
0
1
1
FFFFh
0000h
140000h
1
0
0
0
1BFFFFh
0
1
1
1
FFFFh
0000h
180000h
0
1
0
0
1FFFFFh
1
0
1
1
FFFFh
0000h
1C0000h
1
0
0
0
23FFFFh
0
1
1
1
FFFFh
0000h
200000h
0
1
0
0
27FFFFh
1
0
1
1
FFFFh
0000h
240000h
1
0
0
0
2BFFFFh
0
1
1
1
FFFFh
0000h
280000h
0
1
0
0
2FFFFFh
1
1
1
0
FFFFh
0000h
2C0000h
1
0
0
0
33FFFFh
0
1
1
1
FFFFh
0000h
300000h
0
1
0
0
37FFFFh
1
0
1
1
FFFFh
0000h
340000h
1
0
0
0
3BFFFFh
0
1
1
1
FFFFh
380000h
0
1
0
0
0000h
3BFFFFh
0
1
1
1
FFFFh
3C0000h
1
0
0
0
0000h
3FFFFF
1
0
1
1
FFFFh
3C0000h
1
1
0
0
0000h
3CFFFFh
1
1
0
0
FFFFh
Internal ROM access
Internal ROM access
Internal ROM access
Internal ROM access
A18
N.C.
A17
A16 A15 to A0
4-MB ROM
access area
Page 162 of 807
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