Renesas M16C/64A Series User Manual page 197

M16C/64A Group
Microprocessor mode
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 12.8 Relationship between Addresses in 4-MB ROM and Those in MCU (3/3)
R01UH0136EJ0210 Rev.2.10
Jul 31, 2012
MCU address
OFS bit in DBR OFS bit in DBR
register = 0 register = 1
40000h
bank
0
40000h
(512 KB)
BFFFFh
bank
0
(512 KB)
40000h
BFFFFh
bank
1
40000h
(512 KB)
bank
BFFFFh 1
(512 KB)
40000h
BFFFFh
bank
2
40000h
(512 KB)
bank
BFFFFh 2
(512 KB)
40000h
BFFFFh
bank
3
(512 KB) 40000h
BFFFFh bank
3
(512 KB)
40000h
BFFFFh
bank
4
40000h
(512 KB)
bank
BFFFFh 4
(512 KB)
40000h
BFFFFh
bank
5
(512 KB) 40000h
BFFFFh bank
5
(512 KB)
40000h
BFFFFh
bank
6
(512 KB) 40000h
BFFFFh
bank 6
(512 KB)
40000h
bank
7
(512 KB)
BFFFFh
7FFFFh
C0000h
FFFFFh
12. Memory Space Expansion Function
Bank Access
CS Output
OFS
Number Area
CS3 CS2 CS1
40000h
0 0
0
BFFFFh
0 0
0
40000h
0 0
1
BFFFFh
0 0
40000h
0 0
0
BFFFFh
0 0
1
40000h
0 0
1
BFFFFh
0 1
40000h
0 1
0
BFFFFh
0 1
2
40000h
0 1
1
BFFFFh
0 1
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
BFFFFh
1 0
5
40000h
1 0
1
BFFFFh
1 1
40000h
1 1
0
BFFFFh
1 1
6
40000h
1 1
1
BFFFFh
1 1
40000h
1 1
7FFFFh
1 1
80000h
1 1
7 0
BFFFFh
1 1
C0000h
1 1
FFFFFh
1 1
A21 A20 A19
Address input for 4-MB ROM
Output from the MCU Pins
Address Output
A19 A18 A17 A16 A15 to A0
0 0000h
0 1 0 0
FFFFh
0 1 0 1 1
0 0000h
1 0 0 0
1 FFFFh
0 1 1 1
1 0000h
0 1 0 0
1 1 FFFFh
0 1 1
1 0000h
1 0 0 0
0 FFFFh
0 1 1 1
0 0 0000h
1 0 0
0 FFFFh
1 0 1 1
0 0000h
1 0 0 0
FFFFh
1 0 1 1 1
1 0 0000h
1 0 0
1 FFFFh
1 0 1 1
1 0000h
1 0 0 0
0 0 FFFFh
1 1 1
0 0000h
0 1 0 0
0 FFFFh
1 0 1 1
0000h
0 1 0 0 0
1 FFFFh
0 1 1 1
1 0000h
0 1 0 0
1 1 FFFFh
0 1 1
1 1 0000h
0 0 0
0 FFFFh
0 1 1 1
0 0000h
0 1 0 0
0 FFFFh
1 0 1 1
0 0000h
1 0 0 0
FFFFh
1 0 1 1 1
0000h
1 0 1 0 0
1 FFFFh
0 1 1 1
1 0000h
1 0 0 0
1 1 FFFFh
0 1 1
0000h
1 1 1 0 0
1 FFFFh
1 1 1 1
A18 N.C. A17 A16 A15 to A0
Page 164 of 800
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-MB ROM
access area