keep safety first in your circuit designs !
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products better and more reliable, but there is always the possibility that trouble
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against any malfunction or mishap.
Notes regarding these materials
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Preface
This user's manual describes Mitsubishi's CMOS 8-
bit microcomputers 3802 Group.
After reading this manual, the user should have a
through knowledge of the functions and features of
the 3802 Group, and should be able to fully utilize
the product. The manual starts with specifications
and ends with application examples.
For details of software, refer to the "SERIES MELPS
740 <SOFTWARE> USER'S MANUAL."
For details of development support tools, refer to the
"DEVELOPMENT SUPPORT TOOLS FOR MICRO-
COMPUTERS" data book.
BEFORE USING THIS USER'S MANUAL
This user's manual consists of the following three chapters. Refer to the chapter appropriate to your conditions, such
as hardware design or software development. Chapter 3 also includes necessary information for systems development.
Be sure to refer to this chapter.
1. Organization
q
CHAPTER 1 HARDWARE
This chapter describes features of the microcomputer and operation of each peripheral function.
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CHAPTER 2 APPLICATION
This chapter describes usage and application examples of peripheral functions, based mainly on setting examples
of related registers.
q
CHAPTER 3 APPENDIX
This chapter includes necessary information for systems development using the microcomputer, electric
characteristics, a list of registers, the masking confirmation (mask ROM version), and mark specifications which
are to be submitted when ordering.
2. Structure of register
The figure of each register structure describes its functions, contents at reset, and attributes as follows :
0 0 : Single-chip mode
Note 2. Bit attributesThe attributes of control register bits are classified into 3 bytes : read-only, write-only
and read and write. In the figure, these attributes are represented as follows :
: Bit in which nothing is arranged
0 1 :
Name
Function
At reset
R W
B
0
1
2
3
4
0
0
0
0
0
!
!
5
6
7
1
T
b0
b1
b2
b3
b4
b5
b6
b7
Contents immediately after reset release
Bit attributes
(Note 1)
Processor mode bits
Stack page selection bit
Nothing arranged for these bits. These are write disabled
bits. When these bits are read out, the contents are "0."
Fix this bit to "0."
Main clock (X
IN
-X
OUT
) stop bit
Internal system clock selection bit
1 0 :
1 1 :
Not available
b1 b0
0 : 0 page
1 : 1 page
0 : Operating
1 : Stopped
0 : X
IN
-X
OUT
selected
1 : X
CIN
-X
COUT
selected
: Bit that is not used for control of the corresponding function
0
Note 1. Contents immediately after reset release
0"0" at reset release
1"1" at reset release
UndefinedUndefined or reset release
Contents determined by option at reset release
T
RRead
Read enabled
!
Read disabled
WWrite
Write enabled
!
Write disabled
(Note 2)
T
CPU mode register (CPUM) [Address : 3B
16
]
Bits
LIST OF GROUPS HAVING THE SIMILAR FUNCTIONS
Prescaler : 3
Timer : 4
<8-bit>
Prescaler : 3
Timer : 4
<8-bit>
Prescaler : 3
Timer : 4
<8-bit>
Function
Group
Pin
(Package type)
Timer
A-D converter
D-A converter
Clock generating circuit
Serial I/O
Remarks
One Time
PROM
EPROM
RAM
Mask
ROM
Memory
type
V
24K
512
384
32K
8K
16K
32K
16K
(Note 1)
8K
(Note 1)
16K
(Note 1)
32K
(Note 1)
384 384
640
8K
(Note 1)
24K
384
384
640
16K
(Note 1)
32K
(Note 1)
32K
(Note 1)
32K
1024
PWM output
512
16K
16K
16K
3800 group
64 pin
64P4B
64P6N-A
64P6D-A
1 circuit
UART or
Clock synchronous
!
1
3802 group
64 pin
64P4B
64P6N-A
8-bit
!
8-channel
8-bit
!
2-channel
UART or
Clock synchronous
!
1
Clock synchronous
!
1
1 circuit
1 circuit
UART or
Clock synchronous
!
1
Clock synchronous
!
1
3806 group
3807 group
80 pin
80P6N-A
2 circuit
8-bit
!
13-channel
8-bit
!
4-channel
UART or
Clock synchronous
!
1
Clock synchronous
!
1
Timer : 3
<8-bit>
Timer X/Y : 2
Timer A/B : 2
<16-bit>
80 pin
80P6N-A
80P6S-A
80P6D-A
12K
(Note 1)
16K
(Note 1)
24K
(Note 3)
24K
32K
(Note 3)
48K
(Note 3)
1024
512
384 384
1024
24K
(Note 2)
48K
(Note 3)
8-bit
!
8-channel
8-bit
!
2-channel
As of September 1995
Real time port output
Analog comparator
Watchdog timer
48K
(Note 2)
Notes 1: Extended operating temperature version available
2: High-speed version available
3: Extended operating temperature version and High-speed version available
V
. ROM expansion
3802 group, one of the CMOS 8-bit microcomputer 38000 series presented in this user's manual is provided with
standard functions.
The basic functions of the 3800, 3802, 3806 and 3807 groups having the same functions are shown below. For the
detailed functions of each group, refer to the related data book and user's manual.
List of groups having the same functions
PDF 
ZIP