M30623MCT 데이터 시트보기 (PDF) - Mitsumi
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M30623MCT Datasheet PDF : 184 Pages
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Tentative Specifications REV.A
Specifications in this manual are
tentative
and
subject
to
change.
Mitsubishi microcomputers
M16C / 62T Group
Pin Description
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Pin Description
Pin name
VCC, VSS
CNVSS
Signal name
Power supply
input
CNVSS
____________
RESET
XIN
XOUT
Reset input
Clock input
Clock output
BYTE
External data
bus width
select input
AVCC
AVSS
VREF
P00 to P07
Analog power
supply input
Analog power
supply input
Reference
voltage input
I/O port P0
D0 to D7
P10 to P17
D8 to D15
P20 to P27
I/O port P1
I/O port P2
A0 to A7
A0/D0 to
A7/D7
A0, A1/D0
to A7/D6
P30 to P37
A8 to A15
A8/D7,
A9 to A15
I/O port P3
I/O type
Input
Input
Input
Output
Input
Input
Input/output
Input/output
Input/output
Input/output
Input/output
Output
Input/output
Output
Input/output
Input/output
Output
Input/output
Function
Supply 4.2 V to 5.5 V to the VCC pin. Supply 0 V to the VSS pin.
This pin switches between processor modes. Connect it to the VSS
pin when operating in single-chip or memory expansion mode.
Connect it to the VCC pin when operating in microprocessor mode.
A “L” on this input resets the microcomputer.
These pins are provided for the main clock generating circuit.
Connect a ceramic resonator or crystal between the XIN and the
XOUT pins. To use an externally derived clock, input it to the XIN pin
and leave the XOUT pin open.
This pin selects the width of an external data bus. A 16-bit width is
selected when this input is “L”; an 8-bit width is selected when this
input is “H”. This input must be fixed to either “H” or “L”. When
operating in single-chip mode, connect this pin to VSS. In M30623
(80-pin package), the BYTE signal is internally connected to the
CNVSS signal.
This pin is a power supply input for the A-D converter. Connect this
pin to VCC.
This pin is a power supply input for the A-D converter. Connect this
pin to VSS.
This pin is a reference voltage input for the A-D converter.
This is an 8-bit CMOS I/O port. It has an input/output port direction
register that allows the user to set each pin for input or output
individually. When set for input, the user can specify in units of four
bits via software whether or not they are tied to a pull-up resistor.
Pins in this port also function as A-D converter extended input pins
as selected by software when operating in single-chip mode.
When set as a separate bus, these pins input and output data (D0–D7).
This is an 8-bit I/O port equivalent to P0. Pins in this port also
function as external interrupt pins as selected by software.
When set as a separate bus, these pins input and output data (D8–D15).
This is an 8-bit I/O port equivalent to P0. Pins in this port also
function as A-D converter extended input pins as selected by
software when operating in single-chip mode.
These pins output 8 low-order address bits (A0–A7).
If the external bus is set as an 8-bit wide multiplexed bus, these pins
input and output data (D0–D7) and output 8 low-order address bits
(A0–A7) separated in time by multiplexing.
If the external bus is set as a 16-bit wide multiplexed bus, these pins
input and output data (D0–D6) and output address (A1–A7)
separated in time by multiplexing. They also output address (A0).
This is an 8-bit I/O port equivalent to P0.
These pins output 8 middle-order address bits (A8–A15).
If the external bus is set as a 16-bit wide multiplexed bus, these pins
input and output data (D7) and output address (A8) separated in time
by multiplexing. They also output address (A9–A15).
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