M38027E8FP Renesas Electronics America, M38027E8FP Datasheet - Page 12

• Manufacturer Part Number: M38027E8FP
• Description: MCU 8-Bit 740 CISC 32KB EPROM 5V 64-Pin PQFP
• Manufacturer: Renesas Electronics America

Specifications of M38027E8FP

• Package: 64PQFP
• Family Name: 740
• Maximum Speed: 8 MHz
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• On-chip Adc: 8-chx8-bit
• On-chip Dac: 2-chx8-bit
• Operating Temperature: -20 to 85 °C
• Number Of Timers: 4

Memory
Special function register (SFR) area
The Special Function Register area in the zero page contains con-
trol 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.
Fig. 2 Memory map diagram
RAM area
ROM area
RAM capacity
ROM capacity
(bytes)
(bytes)
12288
16384
20480
24576
28672
32768
1024
4096
8192
192
256
384
512
640
768
896
00FF
013F
01BF
023F
02BF
033F
03BF
043F
Address
F000
E000
D000
C000
B000
A000
9000
8000
YYYY
Address
XXXX
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
F080
E080
D080
C080
B080
A080
9080
8080
Address
ZZZZ
16
16
16
16
16
16
16
16
16
RAM
ROM
Zero page
The 256 bytes from addresses 0000
zero page area. The internal RAM and the special function regis-
ters (SFR) are allocated to this area.
The zero page addressing mode can be used to specify memory
and register addresses in the zero page area. Access to this area
with only 2 bytes is possible in the zero page addressing mode.
Special page
The 256 bytes from addresses FF00
special page area. The special page addressing mode can be
used to specify memory addresses in the special page area. Ac-
cess to this area with only 2 bytes is possible in the special page
addressing mode.
XXXX
YYYY
FFDC
FFFE
0100
0440
ZZZZ
FFFF
FF00
0000
0040
16
16
16
16
16
16
16
16
16
16
16
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Reserved ROM area
Reserved ROM area
Interrupt vector area
Reserved area
SFR area
(128 bytes)
Not used
MITSUBISHI MICROCOMPUTERS
16
16
Zero page
Special page
3802 Group
to FFFF
to 00FF
16
16
are called the
are called the
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