R5F21122DFP データシートの表示（PDF） - Renesas Electronics

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R5F21122DFP

RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / R8C /Tiny SERIES

Renesas Electronics 

Table of Contents

SFR Page Reference

Chapter 1. Overview ............................................................. 1

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

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

1.3 Block Diagram ............................................................................................................... 3

1.4 Product Information ...................................................................................................... 4

1.5 Pin Assignments ............................................................................................................ 5

1.6 Pin Description .............................................................................................................. 6

Chapter 2. Central Processing Unit (CPU) ......................... 7

2.1 Data Registers (R0, R1, R2 and R3 ) ............................................................................. 7

2.2 AddressRegisters (A0 and A1) ...................................................................................... 8

2.3 Frame Base Register( FB ) ............................................................................................. 8

2.4 Interrupt Table Register (INTB )..................................................................................... 8

2.5 Program Counter (PC ) ................................................................................................... 8

2.6 User Stack Pointer (USP ) and Interrupt Stack Pointer (ISP )..................................... 8

2.7 Static Base Register (SB ) ............................................................................................. 8

2.8 Flag Register (FLG ) ....................................................................................................... 8

2.8.1 Carry Flag ( C Flag ) ................................................................................................................................ 8

2.8.2 Debug Flag ( D Flag ) .............................................................................................................................. 8

2.8.3 Zero Flag ( Z Flag ) .................................................................................................................................. 8

2.8.4 Sign Flag ( S Flag ) .................................................................................................................................. 8

2.8.5 Register Bank Select Flag ( B Flag ) ..................................................................................................... 8

2.8.6 Overflow Flag ( O Flag) ........................................................................................................................... 8

2.8.7 Interrupt Enable Flag ( I Flag ) ............................................................................................................... 8

2.8.8 Stack Pointer Select Flag ( U Flag ) ....................................................................................................... 8

2.8.9 Processor Interrupt Priority Level ( IPL ) .............................................................................................. 8

2.8.10 Reserved Area ....................................................................................................................................... 8

Chapter 3. Memory ............................................................... 9

Chapter 4. Special Function Registers (SFR) .................. 10

Chapter 5. Reset .................................................................. 14

5.1 Hardware Reset ............................................................................................................ 14

5.2 Software Reset .............................................................................................................. 14

5.3 Watchdog Timer Reset ................................................................................................. 14

Chapter 6. Clock Generation Circuit.................................. 17

6.1 Main Clock ..................................................................................................................... 21

6.2 On-Chip Oscillator Clock ............................................................................................. 22

A-1

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