R5F21206JFP 查看數據表（PDF） - Renesas Electronics

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R5F21206JFP

RENESAS MCU

Renesas Electronics 

Table of Contents

SFR Page Reference ........................................................................................................................... B - 1

1. Overview ......................................................................................................................................... 1

1.1 Applications ............................................................................................................................................... 1

1.2 Performance Overview .............................................................................................................................. 2

1.3 Block Diagram .......................................................................................................................................... 4

1.4 Product Information .................................................................................................................................. 5

1.5 Pin Assignments ........................................................................................................................................ 7

1.6 Pin Functions ............................................................................................................................................. 8

2. Central Processing Unit (CPU) ..................................................................................................... 10

2.1 Data Registers (R0, R1, R2 and R3) ....................................................................................................... 11

2.2 Address Registers (A0 and A1) ............................................................................................................... 11

2.3 Frame Base Register (FB) ....................................................................................................................... 11

2.4 Interrupt Table Register (INTB) .............................................................................................................. 11

2.5

2.6

2.7

2.8

2.8.1

2.8.2

Program Counter (PC) ............................................................................................................................. 11

User Stack Pointer (USP) and Interrupt Stack Pointer (ISP) .................................................................. 11

Static Base Register (SB) ........................................................................................................................ 11

Flag Register (FLG) ................................................................................................................................ 11

Carry Flag (C) ..................................................................................................................................... 11

Debug Flag (D) ................................................................................................................................... 11

2.8.3 Zero Flag (Z) ....................................................................................................................................... 11

2.8.4 Sign Flag (S) ....................................................................................................................................... 11

2.8.5 Register Bank Select Flag (B) ............................................................................................................ 11

2.8.6

2.8.7

2.8.8

2.8.9

2.8.10

Overflow Flag (O) .............................................................................................................................. 11

Interrupt Enable Flag (I) ..................................................................................................................... 12

Stack Pointer Select Flag (U) .............................................................................................................. 12

Processor Interrupt Priority Level (IPL) ............................................................................................. 12

Reserved Bit ........................................................................................................................................ 12

3. Memory ......................................................................................................................................... 13

3.1 R8C/20 Group ......................................................................................................................................... 13

3.2 R8C/21 Group ......................................................................................................................................... 14

4. Special Function Registers (SFRs) ............................................................................................... 15

5. Resets ........................................................................................................................................... 21

5.1 Hardware Reset ....................................................................................................................................... 24

5.1.1 When Power Supply is Stable ............................................................................................................. 24

5.1.2 Power On ............................................................................................................................................ 24

5.2 Power-On Reset Function ....................................................................................................................... 26

5.3 Voltage Monitor 1 Reset ......................................................................................................................... 27

5.4 Voltage Monitor 2 Reset ......................................................................................................................... 27

5.5 Watchdog Timer Reset ............................................................................................................................ 27

5.6 Software Reset ......................................................................................................................................... 27

6. Voltage Detection Circuit .............................................................................................................. 28

6.1 VCC Input Voltage .................................................................................................................................. 34

6.1.1 Monitoring Vdet1 ............................................................................................................................... 34

A-1

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