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HD6437021X Datasheet(PDF) 9 Page - Hitachi Semiconductor |
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HD6437021X Datasheet(HTML) 9 Page - Hitachi Semiconductor |
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9 / 507 page  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 |
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