SH7018 datasheet(7/431 Pages) RENESAS

7 / 431 page

Contents

Section 1 SH7018 Overview ............................................................................................ 1

1.1

SH7018 Features................................................................................................................ 1

1.2

Block Diagram................................................................................................................... 5

1.3

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

1.3.1

Pin Layout ............................................................................................................ 6

1.3.2

Pin Functions........................................................................................................ 7

Section 2 CPU ....................................................................................................................... 11

2.1

Register Configuration ...................................................................................................... 11

2.1.1

General Registers (Rn) ......................................................................................... 11

2.1.2

Control Registers.................................................................................................. 12

2.1.3

System Registers .................................................................................................. 13

2.1.4

Initial Values of Registers ................................................................................... 13

2.2

Data Formats...................................................................................................................... 14

2.2.1

Data Format in Registers...................................................................................... 14

2.2.2

Data Format in Memory ....................................................................................... 14

2.2.3

Immediate Data Format........................................................................................ 14

2.3

Instruction Features ........................................................................................................... 15

2.3.1

RISC-Type Instruction Set ................................................................................... 15

2.3.2

Addressing Modes................................................................................................ 18

2.3.3

Instruction Format ................................................................................................ 22

2.4

Instruction Set by Classification........................................................................................ 25

2.5

Processing States ............................................................................................................... 38

2.5.1

State Transitions ................................................................................................... 38

2.5.2

Power-Down State................................................................................................ 39

Section 3 Operating Modes ............................................................................................... 41

3.1

Operating Mode Selection ................................................................................................. 41

3.2

Description of Operating Modes ....................................................................................... 41

3.3

Pin Configuration .............................................................................................................. 42

Section 4 Clock Pulse Generator (CPG) ....................................................................... 43

4.1

Overview............................................................................................................................ 43

4.2

Clock Source...................................................................................................................... 43

4.2.1

Crystal Resonator Connection.............................................................................. 43

4.2.2

External Clock Input ............................................................................................ 45

4.3

Usage Notes ....................................................................................................................... 45

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