Datasheet

M32C/8A Group 1. Overview
REJ03B0213-0111 Rev.1.11 Mar 31, 2009
Page 4 of 66
Table 1.3 Specifications (100-Pin Package) (1/2)
Item Function Specification
CPU Central processing unit M32C/80 core (multiplier: 16 bits × 16 bits → 32 bits,
multiply-addition operation instructions: 16 × 16 + 48 → 48 bits)
• Basic instructions: 108
• Minimum instruction execution time:
31.3 ns (f(CPU) = 32 MHz / VCC1 = 4.2 to 5.5 V)
41.7 ns (f(CPU) = 24 MHz / VCC1 = 3.0 to 5.5 V)
• Operating mode: microprocessor mode
Memory ROM, RAM See Table 1.5 Product List.
Power Supply Voltage Detection Vdet3 detection function, Vdet4 detection function,
cold start/warm start determination function
External
Bus
Expansion
Bus / memory expansion
function
• Address space: 16 Mbytes
• External bus interface: 1 to 7 wait states can be inserted,
4 chip select outputs, 3 V and 5 V interfaces
• Bus format: Switchable between separate bus and multiplexed
bus formats, switchable data bus width (8-bit or 16-bit)
Clock Clock generation circuits • 4 circuits:
Main clock, sub clock, on-chip oscillator,
PLL frequency synthesizer
• Oscillation stop detection:
Main clock oscillation stop detection function
• Frequency divider circuit:
Dividing ratio selectable among 1, 2, 3, 4, 6, 8, 10, 12, 14, 16
• Low power consumption features: Wait mode, stop mode
Interrupts • Interrupt vectors: 70
• External interrupt inputs:
- 11 (NMI
, INT × 6, Key input × 4) : 8-bit external bus width
- 8 (NMI
, INT × 3, Key input × 4) : 16-bit external bus width
• Interrupt priority levels: 7
Watchdog Timer 15-bit × 1 channel (with prescaler)
DMA DMAC • 4 channels, cycle steal method
• Trigger sources: 31
• Transfer modes: 2 (single transfer and repeat transfer)
DMACII • Can be activated by all peripheral function interrupt sources
• Transfer modes: 2 (single transfer and burst transfer)
• Immediate transfer, calculation transfer, and chain transfer
functions
Timer Timer A 16-bit timer × 5
Timer mode, event counter mode, one-shot timer mode,
pulse width modulation (PWM) mode
Event counter 2-phase pulse signal processing (2-phase
encoder input) × 3
Timer B 16-bit timer × 6
Timer mode, event counter mode, pulse period measurement
mode, pulse width measurement mode
Timer function for
3-phase motor control
3-phase inverter control × 1 (using timer A1, timer A2, timer A4,
and timer B2)
On-chip dead time timer