SH7125_08 Datasheet, PDF (9/774 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Contents
Section 1 Overview................................................................................................1
1.1 Features of SH7125 and SH7124........................................................................................... 1
1.2 Block Diagram....................................................................................................................... 6
1.3 Pin Assignments .................................................................................................................... 7
1.4 Pin Functions ....................................................................................................................... 11
Section 2 CPU......................................................................................................17
2.1 Features................................................................................................................................ 17
2.2 Register Configuration......................................................................................................... 18
2.2.1 General Registers (Rn)............................................................................................ 19
2.2.2 Control Registers .................................................................................................... 19
2.2.3 System Registers..................................................................................................... 21
2.2.4 Initial Values of Registers....................................................................................... 21
2.3 Data Formats........................................................................................................................ 22
2.3.1 Register Data Format .............................................................................................. 22
2.3.2 Memory Data Formats ............................................................................................ 22
2.3.3 Immediate Data Formats......................................................................................... 23
2.4 Features of Instructions........................................................................................................ 23
2.4.1 RISC Type .............................................................................................................. 23
2.4.2 Addressing Modes .................................................................................................. 26
2.4.3 Instruction Formats ................................................................................................. 29
2.5 Instruction Set ...................................................................................................................... 33
2.5.1 Instruction Set by Type........................................................................................... 33
2.5.2 Data Transfer Instructions ...................................................................................... 37
2.5.3 Arithmetic Operation Instructions .......................................................................... 39
2.5.4 Logic Operation Instructions .................................................................................. 41
2.5.5 Shift Instructions..................................................................................................... 42
2.5.6 Branch Instructions ................................................................................................. 43
2.5.7 System Control Instructions.................................................................................... 44
2.6 Processing States.................................................................................................................. 46
Section 3 MCU Operating Modes .......................................................................49
3.1 Selection of Operating Modes ............................................................................................. 49
3.2 Input/Output Pins................................................................................................................. 50
3.3 Operating Modes.................................................................................................................. 50
3.3.1 Mode 3 (Single Chip Mode) ................................................................................... 50
Rev. 4.00 Jul. 25, 2008 Page ix of xx