M16C62N Datasheet, PDF (24/213 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Processor Mode
Mitsubishi microcomputers
M16C / 62N Group (80-pin)
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Single-chip mode
0000016
0040016
SFR area
XXXXX16
Internal
RAM area
RAM size
10K bytes
20K bytes
Address XXXXX16
02BFF16
053FF16
ROM size Address YYYYY16
128K bytes
E000016
256K bytes
C000016
YYYYY16
FFFFF16
Reserved
area
Internal
ROM area
Note : These memory maps show an instance in which PM13 is set to 0; but in the case of products
in which the internal RAM and the internal ROM are expanded to over 15 Kbytes and 192 Kbytes,
respectively, they show an instance in which PM13 is set to 1.
Figure 1.8.2. Memory map
Internal Reserved Area Expansion Bit (PM13)
This bit expands the internal RAM area and the internal ROM area, and changes the chip select area. In
M30625MGN, for example, to set this bit to “1” expands the internal RAM area and the internal ROM area
to 20 Kbytes and 256 Kbytes respectively. When the reset is revoked, this bit is set to “0”. To expand the
internal area, set this bit to “1” in user program. And the top of user program must be allocated to D000016
or subsequent address.
In the case of the product in which the internal ROM is 192 Kbytes or less and the internal RAM is 15
Kbytes or less, set this bit to “0”. The internal area is not expanded and any action is not affected, even if
this bit is set to “1”.
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