R8C2K datasheet(21/471 Pages) RENESAS

21 / 471 page

R8C/2K Group, R8C/2L Group

1. Overview

Rev.1.10

Dec 21, 2007

Page 4 of 450

REJ09B0406-0110

Table 1.3

Specifications for R8C/2L Group (1)

Item

Function

Specification

CPU

Central processing

unit

R8C/Tiny series core

• Number of fundamental instructions: 89

• Minimum instruction execution time:

50 ns (f(XIN) = 20 MHz, VCC = 3.0 to 5.5 V)

100 ns (f(XIN) = 10 MHz, VCC = 2.7 to 5.5 V)

200 ns (f(XIN) = 5 MHz, VCC = 2.2 to 5.5 V)

• Multiplier: 16 bits × 16 bits

→ 32 bits

• Multiply-accumulate instruction: 16 bits × 16 bits + 32 bits

→ 32 bits

• Operation mode: Single-chip mode (address space: 1 Mbyte)

Memory

ROM, RAM

Refer to Table 1.6 Product List for R8C/2L Group.

Power Supply

Voltage

Detection

Voltage detection

circuit

• Power-on reset

• Voltage detection 3

I/O Ports

Programmable I/O

ports

• Input-only: 3 pins

• CMOS I/O ports: 25, selectable pull-up resistor

• High current drive ports: 8

Clock

Clock generation

circuits

2 circuits: XIN clock oscillation circuit (with on-chip feedback resistor),

On-chip oscillator (high-speed, low-speed)

(high-speed on-chip oscillator has a frequency adjustment function)

• Oscillation stop detection: XIN clock oscillation stop detection function

• Frequency divider circuit: Dividing selectable 1, 2, 4, 8, and 16

• Low power consumption modes:

Standard operating mode (high-speed clock, high-speed on-chip oscillator,

low-speed on-chip oscillator), wait mode, stop mode

Interrupts

• External: 4 sources, Internal: 15 sources, Software: 4 sources

• Priority levels: 7 levels

Watchdog Timer

15 bits × 1 (with prescaler), reset start selectable

Timer

Timer RA

8 bits × 1 (with 8-bit prescaler)

Timer mode (period timer), pulse output mode (output level inverted every

period), event counter mode, pulse width measurement mode, pulse period

measurement mode

Timer RB

8 bits × 1 (with 8-bit prescaler)

Timer mode (period timer), programmable waveform generation mode (PWM

output), programmable one-shot generation mode, programmable wait one-

shot generation mode

Timer RC

16 bits × 1 (with 4 capture/compare registers)

Timer mode (input capture function, output compare function), PWM mode

(output 3 pins), PWM2 mode (PWM output pin)

Timer RD

16 bits × 2 (with 4 capture/compare registers)

Timer mode (input capture function, output compare function), PWM mode

(output 6 pins), reset synchronous PWM mode (output three-phase

waveforms (6 pins), sawtooth wave modulation), complementary PWM mode

(output three-phase waveforms (6 pins), triangular wave modulation), PWM3

mode (PWM output 2 pins with fixed period)

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