M38C88EA-XXXFP 데이터 시트보기 (PDF) - MITSUBISHI ELECTRIC
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M38C88EA-XXXFP Datasheet PDF : 51 Pages
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MITSUBISHI MICROCOMPUTERS
38C8 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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
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 user area for storing programs.
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.
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
RAM
000016
004016
013016
SFR area
LCD display RAM area✽
XXXX16
034016
043016
LCD display RAM area✽
Zero page
084016
YYYY16
ZZZZ16
Not used
Reserved ROM area
(128 bytes)
ROM
FF0016
FFDC16
FFFE16
FFFF16
Interrupt vector area
Reserved ROM area
Special page
✽ The stard address of the LCD display area can be switched either zero page (addresses 004016–00EF16) or 3 page (addresses
034016–03EF16) by software. Immediately after reset released, 3 page is selected.
Fig. 8 Memory map diagram
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