M37754 Mitsubishi, M37754 Datasheet - Page 5

• Manufacturer Part Number: M37754
• Description: SINGLE-CHIP 16BIT CMOS MICROCOMPUTER
• Manufacturer: Mitsubishi

PIN DESCRIPTION (MICROCOMPUTER MODE)
Note: It is impossible to change the input level of the BYTE pin in each bus cycle. In other words, bus width cannot be switched dynamically. Fix the input
V
CNV
RESET
X
X
E
BYTE
(Note)
AV
AV
V
P0
P1
P2
P2
P3
P4
P5
P6
P7
P8
P9
CC
IN
OUT
REF
CC
SS
0
0
0
7
0
0
0
0
0
0
0
Pin
, V
– P0
– P1
– P2
– P3
– P4
– P5
– P6
– P7
– P8
– P9
SS
level of the BYTE pin to “H” or “L” according to the bus width used.
,
SS
7
7
3
3
7
7
7
7
7
5
,
Power supply
CNV
Reset input
Clock input
Clock output
Enable output
Bus width select input
Analog supply input
Reference voltage input
I/O port P0
I/O port P1
I/O port P2
I/O port P3
I/O port P4
I/O port P5
I/O port P6
I/O port P7
I/O port P8
I/O port P9
SS
input
Name
Output
Output
Output
Input/
Input
Input
Input
Input
Input
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
M37754M8C-XXXGP, M37754M8C-XXXHP
____
____
Supply 5 V±10 % to V
This pin controls the processor mode. Connect to V
expansion mode. Connect to V
This is reset input pin. The microcomputer is reset when supplying “L” level to this
pin.
These are I/O pins of internal clock generating circuit. Connect a ceramic or quartz-
crystal resonator between X
source should be connected to the X
This pin outputs enable signal E, which indicates access state of data bus for
single-chip mode.
This pin outputs RD signal for memory expansion mode or microprocessor mode.
This pin determines whether the external data bus is 8-bit width or 16-bit width for
memory expansion mode or microprocessor mode. The width is 16 bits when “L”
signal inputs and 8 bits when “H” signal inputs.
Power supply for the A-D converter and the D-A converter. Connect AV
and AV
This is reference voltage input pin for the A-D converter and the D-A converter.
In single-chip mode, port P0 is an 8-bit I/O port. This port has an I/O direction
register and each pin can be programmed for input or output. These ports are in
the input mode when reset. Address (A
or microprocessor mode.
In single-chip mode, these pins have the same functions as port P0. Address (A
A
In single-chip mode, these pins have the same functions as port P0. Address (A
A
In single-chip mode, these pins have the same functions as port P0. In memory
expansion mode or microprocessor mode, WR, BHE , ALE, and HLDA signals are
output.
In single-chip mode, these pins have the same functions as port P0. In memory
expansion mode or micro processor mode, P4
RDY input pins, and clock
the same as in single-chip mode. In memory expansion mode, P4
programmed as I/O port.
In addition to having the same functions as port P0 in single-chip mode, these pins
also function as I/O pins for timer A0, timer A1, timer A2, timer A3, output pins for
motor drive waveform, and input pins for key input interrupt.
In addition to having the same functions as port P0 in single-chip mode, these pins
also function as I/O pins for timer A4, input pins for external interrupt input INT
INT
In addition to having the same functions as port P0 in single-chip mode, these pins
also function as input pins for A-D converter.
In addition to having the same functions as port P0 in single-chip mode, these pins
also function as I/O pins for UART0, UART1, output pins for D-A converter, and
input pin for INT
In addition to having the same functions as port P0 in single-chip mode, these pins
also function as input pin for INT
In memory expansion mode and microprocessor mode, these pins can be
programmed as address (A
15
19
) is output in memory expansion mode or microprocessor mode.
, A
1
, and INT
23
SS
) is output in memory expansion mode or microprocessor mode.
to V
____
____
2
SS
, and input pins for timer B0, timer B1, and timer B2.
___
4
.
externally.
M37754S4CGP, M37754S4CHP
CC
and 0 V to V
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
20
1
IN
____
output pin respectively. Functions of other pins are
CC
- A
and X
_
3
for microprocessor mode and external ROM version.
22
, output pins for motor drive waveform.
) or output pins for CS
OUT
Functions
IN
SS
0
pin and the X
MITSUBISHI MICROCOMPUTERS
. When an external clock is used, the clock
.
- A
___ ____
7
) is output in memory expansion mode
0
, P4
SS
1
for single-chip mode or memory
, and P4
OUT
___
pin should be left open.
0
– CS
2
___
become HOLD and
4
_____
2
can be
CC
_____
to V
____
CC
0
,
8
16
-
-
5