R5F212A7SNFP-V2 View Datasheet(PDF) - Renesas Electronics

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R5F212A7SNFP-V2

RENESAS MCU

Renesas Electronics 

Table of Contents

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

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

1.1 Features ..................................................................................................................................................... 1

1.1.1 Applications .......................................................................................................................................... 1

1.1.2 Specifications ........................................................................................................................................ 2

1.2 Product List ............................................................................................................................................... 6

1.3

Block Diagram ....................................................................................................................................... 10

1.4 Pin Assignment ........................................................................................................................................ 11

1.5 Pin Functions ........................................................................................................................................... 15

2. Central Processing Unit (CPU) ..................................................................................................... 17

2.1 Data Registers (R0, R1, R2, and R3) ...................................................................................................... 18

2.2 Address Registers (A0 and A1) ............................................................................................................... 18

2.3 Frame Base Register (FB) ....................................................................................................................... 18

2.4 Interrupt Table Register (INTB) .............................................................................................................. 18

2.5 Program Counter (PC) ............................................................................................................................. 18

2.6

2.7

2.8

2.8.1

2.8.2

2.8.3

User Stack Pointer (USP) and Interrupt Stack Pointer (ISP) .................................................................. 18

Static Base Register (SB) ........................................................................................................................ 18

Flag Register (FLG) ................................................................................................................................ 18

Carry Flag (C) ..................................................................................................................................... 18

Debug Flag (D) ................................................................................................................................... 18

Zero Flag (Z) ....................................................................................................................................... 18

2.8.4 Sign Flag (S) ....................................................................................................................................... 18

2.8.5 Register Bank Select Flag (B) ............................................................................................................ 18

2.8.6 Overflow Flag (O) .............................................................................................................................. 18

2.8.7

2.8.8

2.8.9

2.8.10

Interrupt Enable Flag (I) ..................................................................................................................... 19

Stack Pointer Select Flag (U) .............................................................................................................. 19

Processor Interrupt Priority Level (IPL) ............................................................................................. 19

Reserved Bit ........................................................................................................................................ 19

3. Memory ......................................................................................................................................... 20

3.1 R8C/2A Group ........................................................................................................................................ 20

3.2 R8C/2B Group ......................................................................................................................................... 21

4. Special Function Registers (SFRs) ............................................................................................... 22

5. Resets ........................................................................................................................................... 34

5.1 Hardware Reset ....................................................................................................................................... 37

5.1.1 When Power Supply is Stable ............................................................................................................. 37

5.1.2 Power On ............................................................................................................................................ 37

5.2 Power-On Reset Function ....................................................................................................................... 39

5.3 Voltage Monitor 0 Reset ......................................................................................................................... 40

5.4 Voltage Monitor 1 Reset ......................................................................................................................... 40

5.5 Voltage Monitor 2 Reset ......................................................................................................................... 40

5.6 Watchdog Timer Reset ............................................................................................................................ 41

5.7 Software Reset ......................................................................................................................................... 41

A-1

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