Mitsubishi microcomputers
Description
M16C / 61 Group
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
Description
The M16C/61 group of single-chip microcomputers are built using the high-performance silicon gate
CMOS process using a M16C/60 Series CPU core and are packaged in a 100-pin plastic molded QFP.
These single-chip microcomputers operate using sophisticated instructions featuring a high level of in-
struction efficiency. With 1M bytes of address space, they are capable of executing instructions at high
speed. They also feature a built-in multiplier and DMAC, making them ideal for controlling office, communi-
cations, industrial equipment, and other high-speed processing applications.
The M16C/61 group includes a wide range of products with different internal memory types and sizes and
various package types.
Features
• Memory capacity ............................................ ROM (See Figure 1.1.4. ROM Expansion)
RAM 4K to 10K bytes
• Shortest instruction execution time ................ 100ns (f(X
IN
)=10MH
Z
)
• Supply voltage ............................................... 4.0 to 5.5V (f(X
IN
)=10MH
Z
)
2.7 to 5.5V (f(X
IN
)=7MH
Z
with software one-wait)
• Low power consumption ................................ 18mW ( f(X
IN
)=7MH
Z
, with software one-wait, V
CC
= 3V)
• Interrupts ........................................................ 20 internal and 5 external interrupt sources, 4 software
interrupt sources; 7 levels (including key input interrupt)
• Multifunction 16-bit timer ................................ 5 output timers + 3 input timers
• Serial I/O (UART or clock synchronous) ........ 3 channels
• DMAC ............................................................ 2 channels (trigger: 16 sources)
• A-D converter ................................................. 10 bits X 8 channels
(Expandable up to 10 channels)
• D-A converter ................................................. 8 bits X 2 channels
• CRC calculation circuit ................................... 1 circuit
• Watchdog timer .............................................. 1 line
• Programmable I/O ......................................... 87 lines
_______
• Input port ........................................................ 1 line (P8
5
shared with NMI pin)
• Memory expansion ........................................ Available (to a maximum of 1M bytes)
• Chip select output .......................................... 4 lines
• Clock generating circuit ................................. 2 built-in clock generation circuits
(built-in feedback resistor, and external ceramic or quartz oscillator)
Applications
Audio, cameras, office equipment, communications equipment, portable equipment
------Table of Contents------
Central Processing Unit (CPU) ..................... 11
Reset ............................................................. 14
Processor Mode ............................................ 19
Clock Generating Circuit ............................... 30
Protection ...................................................... 39
Interrupts ....................................................... 40
Watchdog Timer ............................................ 59
DMAC ........................................................... 61
Timer ............................................................. 70
Serial I/O ....................................................... 87
A-D Converter ............................................. 114
D-A Converter ............................................. 124
CRC Calculation Circuit .............................. 126
Programmable I/O Ports ............................. 128
Electrical Characteristics ............................. 142
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MITSUBISHI [ MITSUBISHI ELECTRIC SEMICONDUCTOR ]
