M16C62_M Datasheet, PDF (44/615 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

Processor Mode
Mitsubishi microcomputers
M16C / 62A Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Figure 1.7.3 shows the memory maps and the chip selection areas effected by PM13 (the internal re-
served area expansion bit) in each processor mode for the product having an internal RAM of more than
15K bytes and a ROM of more than 192K bytes.
Internal reserved area expansion bit=“0”
Memory expansion
mode
0000016
SFR area
(1K bytes)
0040016 _{Internal RAM area}
(15K bytes)
0400016
Microprocessor
mode
SFR area
(1K bytes)
Internal RAM area
(15K bytes)
0800016
2800016
3000016
External area
CFFFF16
D000016
Internal ROM area
(192K bytes)
FFFFF16
After reset
External area
CS3(16K bytes)
CS2(128K bytes)
CS1(32K bytes)
CS0
Memory expansion mode
: 640K bytes
Microprocessor mode
: 832K bytes
Internal reserved area expansion bit=“1” (Note)
Memory expansion
mode
0000016
SFR area
(1K bytes)
0040016 _{Internal RAM area}
(20K bytes)
0540016 _{Internal reserved area}
0600016
0800016
Microprocessor
mode
SFR area
(1K bytes)
Internal RAM area
(20K bytes)
Internal reserved area
CS3^{(8K bytes)}
CS2(128K bytes)
2800016
3000016
BFFFF16
C000016
External area
Internal ROM area
(256K bytes)
External area
CS1(32K bytes)
CS0
Memory expansion mode
: 576K bytes
Microprocessor mode
: 832K bytes
FFFFF16
After reset, and set the Internal reserved area expansion bit to “1”
Note: When the reset is revoked, this bit is set to “0”. Therefore, the top
of the user program must be allocated to D000016 or subsequent address.
Figure 1.7.3. Memory location and chip select area in each processor mode
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