![](http://datasheet.mmic.net.cn/30000/M30956FKTGP_datasheet_2359453/M30956FKTGP_27.png)
1. Overview
Table 1.1
Specifications (144-Pin Package) (1)
NOTES:
1. I2C bus is a registered trademark of Koninklijke Phillips Electronics N. V
2. IEBus is a registered trademark of NEC Electronics Corporation.
Item
Function
Specification
CPU
Central processing unit
M32C/90 core (multiplier: 16 bits × 16 bits
→ 32 bits
multiply-addition operation instructions: 16 × 16 + 48
→ 48 bits)
Basic instructions: 106
Minimum instruction execution time:
15.6 ns (f(CPU) = 64 MHz, VCC = 4.2 to 5.5 V)
Operating mode: Single-chip
Memory
ROM, RAM, data flash
Clock
Clock generation circuits
4 circuits:
Main clock, sub clock, on-chip oscillator, PLL frequency
synthesizer
Oscillation stop detection: Main clock oscillation stop detection
and re-oscillation 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 input: 14 (NMI, INT × 9, key input × 4)
Interrupt priority levels: 7
Watchdog Timer
15-bit × 1 channel (with prescaler)
DMA
DMAC
4 channels, cycle steal method
Trigger sources: 43
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
Serial
Interface
UART0 to UART4
Clock synchronous/asynchronous × 5
I2C bus,(1) special mode 2, GCI mode, IEBus,(2), SIM UART5, UART6
Clock synchronous/asynchronous × 2
A/D Converter
10-bit resolution × 34 channels, includes sample and hold
function
D/A Converters
8-bit resolution × 2 channels
CRC Calculation Circuit
CRC-CCITT (X16 + X12 + X5 + 1) compliant
X/Y Converter
16 bits x 16 bits