M30622MA-XXXFP RENESAS [Renesas Technology Corp], M30622MA-XXXFP Datasheet - Page 529

• Manufacturer Part Number: M30622MA-XXXFP
• Description: 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY
• Manufacturer: RENESAS [Renesas Technology Corp]

514
External Buses
Figure 5.3.3. Memory Map in Memory space expansion mode 1
5.3.2 Memory Space Expansion Mode 1
In memory space extension mode 1, the accessible area is extended to the memory space that can be
accessed in normal mode plus 176 Kbytes. This 176-Kbyte area ranges from address 04000
dress 2FFFF
When fetching a program from the area consisting of these addresses 04000
CPU reads program code from memory locations selected by the CS0 chip select signal. Also, when
accessing this area for data, the CPU accesses memory locations selected by the CS1, CS2, or CS3 chip
select signal.
In areas following address 30000
locations selected by the CS0 chip select signal.
FFFFF
D0000
00000
00400
04000
08000
28000
30000
16
16
16
16
16
16
16
16
Memory expansion mode
Internal area reserved
Internal area reserved
Internal ROM area
Internal RAM area
External area
SFR area
CS3
CS2
CS1
CS0
16
.
Microprocessor mode
Internal area reserved
______
Internal RAM area
External area
SFR area
CS3
CS2
CS1
CS0
16
, for both program fetch and data access, the CPU accesses memory
Program exclusive area
176K bytes
area of memory
expanded
program/data area
CS0 area
32K bytes
CS1 area
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
______
Data exclusive area
128K bytes
CS2 area
16
______
through 2FFFF
Mitsubishi microcomputers
M16C / 62 Group
______
16K bytes
CS3 area
16
______
16
to ad-
, the