M38031F3L-XXXSP Ver la hoja de datos (PDF) - Renesas Electronics
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M38031F3L-XXXSP Datasheet PDF : 119 Pages
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3803 Group (Spec.L)
MEMORY
• Special Function Register (SFR) Area
The Special Function Register area in the zero page contains
control registers such as I/O ports and timers.
• RAM
The RAM is used for data storage and for stack area of
subroutine calls and interrupts.
• ROM
The first 128 bytes and the last 2 bytes of ROM are reserved for
device testing and the rest is a user area for storing programs.
The reserved ROM area can program/erase in the flash memory
version.
• Interrupt Vector Area
The interrupt vector area contains reset and interrupt vectors.
• Zero Page
Access to this area with only 2 bytes is possible in the zero page
addressing mode.
• Special Page
Access to this area with only 2 bytes is possible in the special
page addressing mode.
<Note>
Since the contents of RAM are undefined at reset, be sure to set
an initial value before use.
RAM area
RAM size
(bytes)
192
256
384
512
640
768
896
1024
1536
2048
ROM area
ROM size
(bytes)
4096
8192
12288
16384
20480
24576
28672
32768
36864
40960
45056
49152
53248
57344
61440
Address
XXXX16
00FF16
013F16
01BF16
023F16
02BF16
033F16
03BF16
043F16
063F16
083F16
Address
YYYY16
F00016
E00016
D00016
C00016
B00016
A00016
900016
800016
700016
600016
500016
400016
300016
200016
100016
Address
ZZZZ16
F08016
E08016
D08016
C08016
B08016
A08016
908016
808016
708016
608016
508016
408016
308016
208016
108016
Fig 11. Memory map diagram
RAM
000016
004016
010016
SFR area
Zero page
XXXX16
0FE016
0FEF16
0FF016
0FFF16
YYYY16
ZZZZ16
Not used
SFR area (Note 1)
SFR area
Not used
Reserved ROM area
(128 bytes)
ROM
FF0016
FFDC16
FFFE16
FFFF16
Interrupt vector area
Reserved ROM area
Special page
Notes 1: Only flash memory version has this SFR area.
2: The reserved ROM area can program/erase in
the flash memory version. Note the difference of
the mask version.
Rev.1.00 Apr 2, 2007 Page 14 of 117
REJ03B0212-0100
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