R01UH0823EJ0100 Rev.1.00 Page 56 of 1823
Jul 31, 2019
RX23W Group 1. Overview
Table 1.2 Comparison of Functions for Different Packages
Module/Functions
RX23W Group
85 Pins 56 Pins
External bus External bus Not supported
Interrupts External interrupts NMI, IRQ0, IRQ1, IRQ4 to IRQ7
DMA DMA controller 4 channels (DMAC0 to DMAC3)
Data transfer controller Available
Timers 16-bit timer pulse unit 6 channels (TPU0 to TPU5) 5 channels (TPU0 to TPU3, TPU5)
Multi-function timer pulse unit 2 5 channels (MTU0 to MTU4)
Port output enable 2 POE0#, POE1#, POE3#, POE8# POE0#, POE8#
8-bit timer 2 channels × 2 units
Compare match timer 2 channels × 2 units
Low power timer 1 channel
Realtime clock Available
Watchdog timer Available
Independent watchdog timer Available
Communication functions Serial communications interfaces
(SCIg)
3 channels (SCI1, 5, 8)
IrDA interface 1 channel (SCI5)
Serial communications interfaces
(SCIh)
1 channel (SCI12) Not supported
I
2
C bus interface 1 channel
CAN module 1 channel
Serial peripheral interface 1 channel
USB 2.0 host/function module 1 channel
Serial sound interface 1 channel
SD Host Interface 1 channel Not supported
Bluetooth low energy An RF transceiver and link layer compliant with Bluetooth 5.0 low
energy specification
Capacitive touch sensing unit 12 channels 9 channels
12-bit A/D converter (including high-precision channels) 14 channels (8 channels) 8 channels (4 channels)
Temperature sensor Available
D/A converter 2 channels 1 channel
CRC calculator Available
Event link controller Available
Comparator B 2 channels
Packages 85-pin BGA 56-pin QFN