SH7020 Datasheet, PDF (11/509 Pages) Renesas Technology Corp – SuperH™ RISC engine

Contents
Section 1 Overview ............................................................................................................ 1
1.1 SH Microcomputer Features.............................................................................................. 1
1.2 Block Diagram................................................................................................................... 7
1.3 Pin Descriptions................................................................................................................. 8
1.3.1 Pin Arrangement .................................................................................................. 8
1.3.2 Pin Functions........................................................................................................ 9
1.3.3 Pin Layout by Mode ............................................................................................. 13
Section 2 CPU ...................................................................................................................... 15
2.1 Register Configuration ...................................................................................................... 15
2.1.1 General Registers (Rn) ......................................................................................... 15
2.1.2 Control Registers.................................................................................................. 15
2.1.3 System Registers .................................................................................................. 16
2.1.4 Initial Values of Registers .................................................................................... 17
2.2 Data Formats...................................................................................................................... 17
2.2.1 Data Format in Registers...................................................................................... 17
2.2.2 Data Format in Memory ....................................................................................... 18
2.2.3 Immediate Data Format........................................................................................ 18
2.3 Instruction Features .............................................................................................................. 19
2.3.1 RISC-Type Instruction Set ................................................................................... 19
2.3.2 Addressing Modes................................................................................................ 22
2.3.3 Instruction Formats .............................................................................................. 25
2.4 Instruction Set.................................................................................................................... 28
2.4.1 Instruction Set by Classification .......................................................................... 28
2.4.2 Operation Code Map ............................................................................................ 39
2.5 CPU State .......................................................................................................................... 41
2.5.1 State Transitions ................................................................................................... 41
2.5.2 Power-Down State................................................................................................ 43
Section 3 Operating Modes .............................................................................................. 45
3.1 Types of Operating Modes and Their Selection................................................................ 45
3.2 Operating Mode Descriptions............................................................................................ 45
3.2.1 Mode 0 (MCU Mode 0)........................................................................................ 45
3.2.2 Mode 1 (MCU Mode 1)........................................................................................ 45
3.2.3 Mode 2 (MCU Mode 2)........................................................................................ 45
3.2.4 Mode 7 (PROM Mode) ........................................................................................ 45
Section 4 Exception Processing ..................................................................................... 47
4.1 Overview............................................................................................................................ 47