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MITSUBISHI MICROCOMPUTERS
M37754M8C-XXXGP, M37754M8C-XXXHP
M37754S4CGP, M37754S4CHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
DESCRIPTION
The M37754M8C-XXXGP is a single-chip microcomputer designed
with high-performance CMOS silicon gate technology. This is housed
in a 100-pin plastic molded QFP.
This microcomputer has a CPU and a bus interface unit. The CPU is
a 16-bit parallel processor that can also be switched to perform 8-bit
parallel processing, and the bus interface unit enhances the memory
access efficiency to execute instructions fast.
In addition to the 7700 Family basic instructions, the M37754M8C-
XXXGP has 6 special instructions which contain instructions for
signed multiplication/division; these added instructions improve the
servo arithmetic performance to control hard disk drives and so on.
This microcomputer also include the ROM, RAM, multiple-function
timers, motor control function, serial I/O, A-D converter, D-A con-
verter, and so on.
The differences between M37754M8C-XXXGP, M37754M8C-XXXHP,
M37754S4CGP and M37754S4CHP are listed in the table on the
next page: the internal ROM, usable processor mode, and package.
Therefore, the following descriptions will be for the M37754M8C-
XXXGP unless otherwise noted.
DISTINCTIVE FEATURES
Number of basic machine instructions .................................... 109
(103 basic instructions of 7700 Family + 6 special instructions)
Memory size
ROM ................................................ 60 Kbytes
RAM................................................2048 bytes
Instruction execution time
The fastest instruction at 40 MHz frequency ...................... 100 ns
Single power supply ...................................................... 5V ±10 %
Low power dissipation (at 40 MHz frequency) .......125 mW (Typ.)
Interrupts ........................................................... 21 types, 7 levels
Multiple-function 16-bit timer ................................................... 5+3
(three-phase motor drive waveform or pulse motor control wave-
form output)
Serial I/O (UART or clock synchronous) ..................................... 2
10-bit A-D converter ............................................8-channel inputs
8-bit D-A converter ............................................ 2-channel outputs
12-bit watchdog timer
Programmable input/output
(ports P0—P11) ......................................................................... 87
Small package [M37754M8C-XXXHP]
.................................100-pin fine pitch QFP (read pitch : 0.5 mm)
APPLICATION
Control devices for personal computer peripheral equipment such as
CD-ROM drives, hard disk drives, high density FDD, printers
Control devices for office equipment such as copiers and facsimiles
Control devices for industrial equipment such as communication and
measuring instruments
Control devices for equipment required for motor control such as in-
verter air conditioner and general purpose inverter
M37754M8C-XXXGP PIN CONFIGURATION (TOP VIEW)
Outline 100P6S-A
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
P
0
/
0
P
1
/
1
P
2
/
2
P
3
/
3
P
4
/
4
P
5
/
5
P
6
/
6
P
7
/
7
P
0
/
8
P
1
/
9
P
2
/
1
P
3
/
1
P
4
/
1
P
5
/
1
P
6
/
1
P
7
/
1
P
0
/
1
P
1
/
1
P
2
/
1
P
3
/
1
P
7
/
2
P
0
/
0
/
0
P
1
/
1
/
1
P
2
/
2
/
2
P
3
/
3
/
3
P
4
/
4
/
4
P
5
/
5
/
5
P
6
/
6
/
6
P
7
/
7
/
7
P
0
/
8
P11
1/
D
9
P11
2
D
10
P11
3/
D
11
P11
4/
D
12
P11
5/
D
13
P11
6/
D
14
P11
7/
D
15
P3
0/
WR
P3
1/
BHE
P3
2/
ALE
P3
3/
HLDA
V
CC
V
SS
→
E/RD
→
X
OUT
←
X
IN
←
RESET
CNV
SS
←
BYTE
P4
0/
HOLD
P8
7
/T
X
D
1
P8
6
/R
X
D
1
P8
5
/CLK
1
P8
4
/CTS
1
/RTS
1
/DA
1
/INT
4
P8
3
/T
X
D
0
P8
2
/R
X
D
0
/CLKS
0
P8
1
/CLK
0
P8
0
/CTS
0
/RTS
0
/CLKS
1
/DA
0
V
CC
AV
CC
V
REF
→
AV
SS
V
SS
P7
7
/AN
7
/AD
TRG
P7
6
/AN
6
P7
5
/AN
5
P7
4
/AN
4
P7
3
/AN
3
P7
2
/AN
2
P7
1
/AN
1
P
0
/
0
P
5
/
3
/
4
P
4
/
4
/
3
P
3
/
3
/
2
/
2
P
2
/
2
/
2
/
1
P
0
/
0
P
7
/
2
P
6
/
1
P
5
/
0
P
4
/
2
P
3
/
1
P
2
/
0
P
1
/
4
P
0
/
4
P
7
/
3
/
3
P
6
/
3
/
2
P
5
/
2
/
1
P
4
/
2
/
0
P
3
/
1
/
3
P
2
/
1
/
2
P
1
/
0
/
1
P
0
/
0
/
0
P
7
P
6
P
5
P
4
P
3
P
2
φ
1
P
1
R
P
1
/
1
/
2
/
0
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
M37754M8C-XXXGP
or
M37754S4CGP
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
2
3
8
7
7
7
7
7
7
7
7
7
7
6
6
6
6
6
6
6
6
6
6
5
5
5
5
5
5
5
5
5