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May.20.22
Contents
1. Comparison of Built-In Functions of RX671 Group and RX65N Group..................................... 4
2. Comparative Overview of Specifications .................................................................................. 6
2.1 CPU ......................................................................................................................................................... 6
2.2 Address Space ........................................................................................................................................ 8
2.3 Option-Setting Memory ......................................................................................................................... 11
2.4 Clock Generation Circuit ....................................................................................................................... 12
2.5 Low Power Consumption ...................................................................................................................... 16
2.6 Battery Backup Function ....................................................................................................................... 20
2.7 Register Write Protection Function ........................................................................................................ 21
2.8 Exception Handling................................................................................................................................ 22
2.9 Interrupt Controller................................................................................................................................. 23
2.10 Buses ..................................................................................................................................................... 27
2.11 DMA Controller ...................................................................................................................................... 31
2.12 Event Link Controller ............................................................................................................................. 33
2.13 I/O Ports ................................................................................................................................................ 38
2.14 Multi-Function Pin Controller ................................................................................................................. 43
2.15 Port Output Enable 3 ............................................................................................................................. 91
2.16 8-Bit Timer ............................................................................................................................................. 92
2.17 USB 2.0 Host/Function Module ............................................................................................................. 93
2.18 Serial Communications Interface .......................................................................................................... 95
2.19 Serial Peripheral Interface ................................................................................................................... 100
2.20 Quad Serial Peripheral Interface/Quad SPI Memory Interface ........................................................... 103
2.21 Boundary Scan .................................................................................................................................... 105
2.22 12-Bit A/D Converter ........................................................................................................................... 106
2.23 Data Operation Circuit ......................................................................................................................... 111
2.24 RAM ..................................................................................................................................................... 113
2.25 Standby RAM ...................................................................................................................................... 114
2.26 Flash Memory ...................................................................................................................................... 115
2.27 Packages ............................................................................................................................................. 119
3. Comparison of Pin Functions ............................................................................................... 120
3.1 144-Pin LFQFP Package .................................................................................................................... 120
3.2 100-Pin TFLGA Package .................................................................................................................... 127
3.3 100-Pin LFQFP Package .................................................................................................................... 132
3.4 64-Pin TFBGA Package ...................................................................................................................... 137
3.5 64-Pin LFQFP Package ...................................................................................................................... 140
4. Notes on Migration............................................................................................................... 143
4.1 Notes on Functional Design ................................................................................................................ 143
4.1.1 Running RAM Self-Diagnostics on Register Save Banks ................................................................. 143