UPD17708 datasheet(9/358 Pages) RENESAS

9 / 358 page

µPD17704, 17705, 17707, 17708, 17709

TABLE OF CONTESNTS

PIN FUNCTIONS .............................................................................................................................. 11

1.1

Pin Function List .................................................................................................................. 11

1.2

Equivalent Circuits of Pins ..................................................................................................16

1.3

Connections of Unused Pins .............................................................................................. 21

1.4

Cautions on Using CE, INT0 through INT4, and RESET Pins ..........................................

1.5

Cautions on Using TEST Pin ............................................................................................... 23

PROGRAM MEMORY (ROM) ..........................................................................................................24

2.1

Outline of Program Memory ................................................................................................ 24

2.2

Program Memory .................................................................................................................. 25

2.3

Program Counter .................................................................................................................. 26

2.4

Flow of Program ................................................................................................................... 26

2.5

Cautions on Using Program Memory ................................................................................

ADDRESS STACK (ASK) ................................................................................................................ 30

3.1

Outline of Address Stack .....................................................................................................30

3.2

Address Stack Register (ASR) ............................................................................................ 30

3.3

Stack Pointer (SP) ................................................................................................................ 32

3.4

Operation of Address Stack ................................................................................................ 33

3.5

Cautions on Using Address Stack ...................................................................................... 34

DATA MEMORY (RAM) ................................................................................................................... 35

4.1

Outline of Data Memory .......................................................................................................35

4.2

Configuration and Function of Data Memory ...................................................................

4.3

Data Memory Addressing .................................................................................................... 42

4.4

Cautions on Using Data Memory ........................................................................................ 43

SYSTEM REGISTERS (SYSREG) ................................................................................................... 44

5.1

Outline of System Registers ............................................................................................... 44

5.2

System Register List ............................................................................................................ 45

5.3

Address Register (AR) ......................................................................................................... 46

5.4

Window Register (WR) .........................................................................................................48

5.5

Bank Register (BANK) .........................................................................................................49

5.6

Index Register (IX) and Data Memory Row Address Pointer (MP: memory pointer) .... 50

5.7

General Register Pointer (RP) ............................................................................................. 52

5.8

Program Status Word (PSWORD) ....................................................................................... 54

GENERAL REGISTER (GR) ............................................................................................................ 56

6.1

Outline of General Register ................................................................................................. 56

6.2

General Register .................................................................................................................. 56

6.3

Generating Address of General Register by Each Instruction ........................................

6.4

Cautions on Using General Register .................................................................................

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