Application Note
R01AN6052EJ0100 Rev.1.00 Page
1
of 154
Jun.23.22
RX660 Group, RX130 Group
Differences Between the RX660 Group and the RX130 Group
Introduction
This application note is intended as a reference to points of difference between the peripheral functions, I/O
registers, and pin functions of the RX660 Group and RX130 Group, as well as a guide to key points to
consider when migrating between the two groups.
Unless specifically otherwise noted, the information in this application note applies to the 144-pin package
version of the RX660 Group and the 100-pin package version of the RX130 Group as the maximum
specifications. To confirm details of differences in the specifications of the electrical characteristics, usage
notes, and setting procedures, refer to the User’s Manual: Hardware of the products in question.
Target Devices
RX660 Group and RX130 Group
RX660 Group, RX130 Group Differences Between the RX660 Group and the RX130 Group
R01AN6052EJ0100 Rev.1.00 Page
2
of 154
Jun.23.22
Contents
1. Comparison of Built-In Functions of RX660 Group and RX130 Group ..................................... 4
2. Comparative Overview of Specifications .................................................................................. 6
2.1 CPU ......................................................................................................................................................... 6
2.2 Operating Modes ..................................................................................................................................... 8
2.3 Address Space ........................................................................................................................................ 9
2.4 Resets ................................................................................................................................................... 10
2.5 Option-Setting Memory ......................................................................................................................... 11
2.6 Voltage Detection Circuit ....................................................................................................................... 13
2.7 Clock Generation Circuit ....................................................................................................................... 17
2.8 Low Power Consumption ...................................................................................................................... 23
2.9 Register Write Protection Function ........................................................................................................ 29
2.10 Exception Handling................................................................................................................................ 30
2.11 Interrupt Controller................................................................................................................................. 31
2.12 Buses ..................................................................................................................................................... 35
2.13 Data Transfer Controller ........................................................................................................................ 37
2.14 Event Link Controller ............................................................................................................................. 39
2.15 I/O Ports ................................................................................................................................................ 45
2.16 Multi-Function Pin Controller ................................................................................................................. 50
2.17 Multi-Function Timer Pulse Unit 2 and Multi-Function Timer Pulse Unit 3 ............................................ 81
2.18 Port Output Enable 2 and Port Output Enable 3 ................................................................................... 85
2.19 8-Bit Timer ............................................................................................................................................. 89
2.20 Compare Match Timer ........................................................................................................................... 91
2.21 Realtime Clock ...................................................................................................................................... 92
2.22 Independent Watchdog Timer ............................................................................................................... 94
2.23 Serial Communications Interface .......................................................................................................... 97
2.24 Remote Control Signal Receiver ......................................................................................................... 103
2.25 I
2
C Bus Interface ................................................................................................................................. 106
2.26 Serial Peripheral Interface ................................................................................................................... 108
2.27 CRC Calculator .................................................................................................................................... 112
2.28 12-Bit A/D Converter ........................................................................................................................... 114
2.29 12-Bit D/A Converter ........................................................................................................................... 123
2.30 Temperature Sensor............................................................................................................................ 124
2.31 Comparator B and Comparator C ....................................................................................................... 125
2.32 Data Operation Circuit ......................................................................................................................... 127
2.33 RAM ..................................................................................................................................................... 129
2.34 Flash Memory ...................................................................................................................................... 130
2.35 Packages ............................................................................................................................................. 135
3. Comparison of Pin Functions ............................................................................................... 136