Datasheet
R8C/M13B Group
R01DS0005EJ0200
Rev.2.00
RENESAS MCU
Mar 19, 2012
1. Overview
1.1 Features
The R8C/M13B Group of single-chip microcontrollers (MCUs) incorporates the R8C CPU core, which provides
sophisticated instructions for a high level of efficiency. With 1 Mbyte of address space, the CPU core is capable of
executing instructions at high speed. In addition, it features a multiplier for high-speed arithmetic processing.
Power consumption is low, and the supported operating modes allow additional power control. These MCUs are
designed to maximize EMI/EMS performance.
Integration of many peripheral functions on the same chip, including multifunction timer and serial interface,
reduces the number of system components.
The R8C/M13B Group includes data flash (1 KB 2 blocks).
1.1.1 Applications
Home appliances, office equipment, audio equipment, consumer products, etc.
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Mar 19, 2012R8C/M13B Group 1. Overview
1.1.2 Specifications
Tables 1.1 and 1.2 outline the Specifications.
Table 1.1 Specifications (1)
Item Function Description
CPU Central processing R8C CPU core
unit Number of fundamental instructions: 89
Minimum instruction execution time:
50 ns (f(XIN) = 20 MHz, VCC = 2.7 V to 5.5 V)
200 ns (f(XIN) = 5 MHz, VCC = 1.8 V to 5.5 V)
Multiplier: 16 bits 16 bits 32 bits
Multiply-accumulate instruction: 16 bits 16 bits + 32 bits 32 bits
Operating mode: Single-chip mode (address space: 1 Mbyte)
Memory ROM, RAM, See Table 1.3 Product List.
data flash
Reset sources
Hardware reset by RESET
Power-on reset
Watchdog timer reset
Software reset
Reset by voltage detection 0
Voltage Voltage detection Voltage detection with two check points:
detection circuit Voltage detection 0, voltage detection 1 (detection levels selectable)
Watchdog timer 14 bits 1 (with prescaler)
Reset start function selectable
Count source protection function selectable
Periodic timer function selectable
Clock Clock generation 4 circuits: XIN clock oscillation circuit, XCIN clock oscillation circuit,
circuits high-speed on-chip oscillator (with frequency adjustment function),
low-speed on-chip oscillator
Oscillation stop detection: XIN clock oscillation stop detection function
Clock frequency divider circuit integrated
Power control Standard operating mode
Wait mode (CPU stopped, peripheral functions in operation)
Stop mode (CPU and peripheral functions stopped)
Interrupts Number of interrupt vectors: 69
External interrupt inputs: 8 (INT 4, key input 4)
Priority levels: 2
I/O ports Programmable I/O CMOS I/O: 29 (pull-up resistor selectable)
ports High-current drive ports: 8
Timer Timer RJ2 16 bits 1
Timer mode, pulse output mode (output level inverted every period),
event counter mode, pulse width measurement mode, pulse period
measurement mode
Timer RB2 8 bits 1 (with 8-bit prescaler) or 16 bits 1 (selectable)
Timer mode, 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 (output compare function, input capture function),
PWM mode (3 outputs), PWM2 mode (1 PWM output)
Timer RK 8 bits 1
Interval mode, pulse output mode, output compare mode
Timer RE2 8 bits 1
Real-time clock mode, compare match timer mode
Serial UART0 Clock synchronous serial I/O. Also used for asynchronous serial I/O.
interface
UART1
Clock synchronous serial interface Synchronous serial communication unit (SSU) 1 channel
2
I C bus interface 1 channel
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Mar 19, 2012