2001-5-14 Rev.1.0
Mitsubishi Microcomputers
32171 Group
SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
Description
32171 Group is a 32-bit, single-chip RISC microcomputer
with built-in flash memory, which was developed for use in
general industrial and household equipment.
To make full use of microcomputer built-in mass volume
flash memory, this microcomputer contains a variety of pe-
ripheral functions ranging from two independent blocks of
16-channel A-D converters to 37-channel multifunction tim-
ers, 10-channel DMAs, 3-channel serial I/Os, and 1-channel
real time debugger. Also included 1-channel Full-CAN mod-
ules and JTAG (boundary scan facility).
With lower power consumption and low noise characteristics
also considered, these microcomputers are ideal for embed-
ded equipment applications.
Real-time Debugger
• Includes dedicated clock-synchronized serial I/O that can
read and write the contents of the internalRAM indepen-
dently of the CPU.
• Can look up and update the data table in real time while the
program is running.
• Can generate a dedicated interrupt based on RTD commu-
nication.
Abundant internal peripheral functions
In addition to the timers and real-time debugger, the
microcomputer contains the following peripheral functions.
• DMAC ............................................................ 10 channels
• A-D converter .................... 10-bit converter
×
16 channels
• Serial I/O ........................................................... 3 channels
• Interrupt controller ......... 22 interrupt sources, 8 priority levels
• Wait controller
• Full CAN ............................................................ 1 channel
• JTAG (Boundary scan function, Mitsubishi original)
Features
M32R RISC CPU core
• Uses the M32R family RISC CPU core (Instruction set
common to all microcomputers in the M32R family)
• Five-stage pipelined processing
• Sixteen 32-bit general-purpose registers
• 16-bit/32-bit instructions implemented
• DSP function instructions (sum-of-products calculation
using 56-bit accumulator)
• Built-in flash memory
• Built-in flash programming boot program
• Built-in RAM
• PLL clock generating circuit .............. Built-in
×
4 PLL circuit
• Maximum operating frequency of the CPU clock
40MHz(when operating at -40 to +85
o
C)
32MHz(when operating at -40 to +125
o
C)
Table 1 Type Name List (32171 Group)
Type Name
M32171F4VFP
M32171F3VFP
M32171F2VFP
RAM Size
16K bytes
16K bytes
16K bytes
ROM Size
512K bytes
384K bytes
256K bytes
Designed to operate at high temperatures
To meet the need for use at high temperatures, the micro-
computer is designed to be able to operate in the temperature
range of -40 to +125
o
C when CPU clock operating
frequency = 32 MHz. When CPU clock operating frequency =
40 MHz, the microcomputer can be used in the temperature
range of -40 to +85
o
C.
Note: This does not guarantee continuous operation at
125
o
C. If you are considering use of the microcom
puter at 125
o
C, please consult Mitsubishi.
Applications
Automobile equipment control (e.g., Engine, ABS, AT), indus-
trial equipment system control, and high-function OA equip-
ment (e.g., PPC)
37-channel multijunction timers (MJT)
Multifunction timers are incorporated that support various
purposes of use.
16-bit output related timers ....................................... 35ch
16-bit input/output related timers .............................. 10ch
16-bit input related timers ........................................... 8ch
32-bit input related timers ........................................... 8ch
• Flexible configuration is possible through interconnection
of timers.
• The internal DMAC and A-D converter can be started by a timer.
2001-5-14 Rev.1.0
Mitsubishi Microcomputers
32171 Group
SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
Table 2 Outline Performance (1/2)
Functional Block
M32R CPU core
Features
M32R family CPU core, internally configured in 32 bits
Built-in multiplier-accumulator (32
×
16 + 56)
Basic bus cycle : 25 ns (CPU clock frequency at 40 MHz, Internal peripheral clock frequency at 20 MHz)
Logical address space : 4G bytes, linear
General-purpose register : 32-bit register
×
16, Control register: 32-bit register
×
5
accumulator : 56 bits
External data bus
Instruction set
16 bits data bus
16-bit/32-bit instruction formats
83 instructions/ 9 addressing modes
Internal flash memory
M32171F4VFP : 512K bytes
M32171F3VFP : 384K bytes
M32171F2VFP : 256K bytes
Rewrite durability : 100 times
Internal RAM
DMAC
16K bytes
10 channels (DMA transfers between internal peripheral I/Os, between internal
peripheral I/O and internal RAM, and between internal RAMs)
Channels can be cascaded and can operate in combination with internal peripheral I/O
Multijunction timer
37 channels of multijunction timers
• 16-bit output-related timers
×
11 channels (single-shot, delayed single-shot)
• 16-bit input/output-related timers
×
10 channels (event count mode, single-shot, PWM, measurement)
• 16-bit input-related timers
×
8 channels (measurement, event count mode)
• 32-bit input-related timers
×
8 channels (measurement)
Flexible timer configuration is possible through interconnection of channels using the event bus.
A-D converter
10-bit multifunction A-D converters
• Input 16 channels
• Scan-based conversion can be switched with 4, 8, and 16
• Capable of interrupt conversion during scan
• 8-bit/10-bit readout function available
Serial I/O
3 channels (The serial I/Os can be set for synchronous serial I/O or UART.
SIO2 is UART mode only)
Real-time debugger (RTD)
1-channels dedicated clock-synchronized serial
• The entire internal RAM can be read or rewritten from the outside without CPU intervention
Interrupt controller
Controls interrupts from internal peripheral I/Os
(Priority can be set to one of 8 levels including interrupt disabled)
Wait controller
Controls wait when accessing external extended area
(1 to 4 wait cycles inserted + prolonged by external WAIT signal input)
CAN
JTAG
16-channels message slots
Boundary-Scan function
4
2001-5-14 Rev.1.0
Mitsubishi Microcomputers
32171 Group
SINGLE-CHIP 32-BIT CMOS MICROCOMPUTER
Table 1 Outline Performance (2/2)
Function Block
Clock
Features
Maximum internal CPU memory clock : 40MHz (access to CPU, internal ROM, andinternal RAM)
Maximum internal peripheral clock : 20MHz (access to internal peripheral module)
Maximum external input clock : 10.0MHz, Built-in multiply-by-4 PLL circuit
Power Supply Voltage
External I/O : 5V (±0.5V) or 3.3V (±0.3V)
Internal logic : 3.3V (±0.3V)
Operating temperature rang
-40 to +125°C (CPU memory clock 32MHz , internal peripheral clock 16MHz)
-40 to +85°C (CPU memory clock 40MHz , internal peripheral clock 20MHz)
Package
0.5mm pitches / 144-pin plastic LQFP
5
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