R01UH0823EJ0100 Rev.1.00
Page 53 of 1823
Jul 31, 2019
RX23W Group
1. Overview
Low power
consumption
Low power consumption
functions
Module stop function
Three low power consumption modes
Sleep mode, deep sleep mode, and software standby mode
Low power timer that operates during the software standby state
Function for lower operating
power consumption
Operating power control modes
High-speed operating mode, middle-speed operating mode, and low-speed operating mode
Interrupt
Interrupt controller (ICUb)
Interrupt vectors: 148
External interrupts: 7 (NMI, IRQ0, IRQ1, IRQ4 to IRQ7 pins)
Non-maskable interrupts: 6 (NMI pin, oscillation stop detection interrupt, voltage monitoring 1
interrupt, WDT interrupt, IWDT interrupt, and VBATT power monitoring interrupt)
16 levels specifiable for the order of priority
DMA
DMA controller (DMACA)
4 channels
Three transfer modes: Normal transfer, repeat transfer, and block transfer
Activation sources: Software trigger, external interrupts, and interrupt requests from peripheral
functions
Data transfer controller
(DTCa)
Transfer modes: Normal transfer, repeat transfer, and block transfer
Activation sources: Interrupts
Chain transfer function
I/O ports
General I/O ports
85-pin/56-pin
I/O: 43/29
Input: 1/1
Pull-up resistors: 43/29
Open-drain outputs: 31/24
5-V tolerance: 5/4
Event link controller (ELC)
Event signals of 59 types can be directly connected to the module
Operations of timer modules are selectable at event input
Capable of event link operation for port B and port E
Multi-function pin controller (MPC)
Capable of selecting the input/output function from multiple pins
Timers
16-bit timer pulse unit
(TPUa)
(16 bits × 6 channels) × 1 unit
Maximum of 10 pulse-input/output possible
Select from among seven or eight counter-input clock signals for each channel
Supports the input capture/output compare function
Output of PWM waveforms in up to 9 phases in PWM mode
Support for buffered operation, phase-counting mode (two-phase encoder input) and cascade
connected operation (32 bits × 2 channels) depending on the channel.
Capable of generating conversion start triggers for the A/D converters
Signals from the input capture pins are input via a digital filter
Clock frequency measuring method
Multi-function timer pulse
unit 2 (MTU2a)
(16 bits × 5 channels) × 1 unit
Up to 15 pulse-input/output lines are available based on the six 16-bit timer channels
Select from among eight or seven counter-input clock signals for each channel (PCLK/1, PCLK/4,
PCLK/16, PCLK/64, PCLK/256, PCLK/1024, MTCLKA, MTCLKB, MTCLKC, MTCLKD).
Input capture function
18 output compare/input capture registers
Pulse output mode
Complementary PWM output mode
Reset synchronous PWM mode
Phase-counting mode
Capable of generating conversion start triggers for the A/D converter
Port output enable 2
(POE2a)
Controls the high-impedance state of the MTU’s waveform output pins
Compare match timer
(CMT)
(16 bits × 2 channels) × 2 units
Select from among four clock signals (PCLK/8, PCLK/32, PCLK/128, PCLK/512)
Watchdog timer (WDTA)
14 bits × 1 channel
Select from among six counter-input clock signals (PCLK/4, PCLK/64, PCLK/128, PCLK/512, PCLK/
2048, PCLK/8192)
Table 1.1
Outline of Specifications (2/4)
Classification
Module/Function
Description