7480 datasheet(6/337 Pages) RENESAS

6 / 337 page

Table of contents

7480 Group and 7481 Group User’s Manual

Table of Contents

CHAPTER 1 HARDWARE

1.1 Product Summary ................................................................................................................. 1-2

1.2 Group Expansion .................................................................................................................. 1-3

1.3 Performance Overviews ....................................................................................................... 1-6

1.4 Pinouts .....................................................................................................................................1-8

1.5 Pin Descriptions .................................................................................................................. 1-10

1.6 Functional Block Diagrams ............................................................................................... 1-12

1.7 Central Processing Unit (CPU) ........................................................................................ 1-15

1.7.1 Accumulator (A) ........................................................................................................... 1-16

1.7.2 Index Register X (X) ................................................................................................... 1-16

1.7.3 Index Register Y (Y) ................................................................................................... 1-16

1.7.4 Stack Pointer (S) ......................................................................................................... 1-16

1.7.5 Program Counter (PC) ................................................................................................ 1-18

1.7.6 Processor Status Register (PS) ................................................................................. 1-18

1.8 Access Area ......................................................................................................................... 1-20

1.8.1 Zero Page (Addresses ‘000016’ through ‘00FF16’) .................................................. 1-21

1.8.2 Special Page (Addresses ‘FF0016’ through ‘FFFF16’) ............................................. 1-21

1.9 Memory Maps ....................................................................................................................... 1-22

1.10 Input/Output Pins .............................................................................................................. 1-26

1.10.1 Block Diagrams .......................................................................................................... 1-26

1.10.2 Registers Associated with I/O Pins ......................................................................... 1-30

1.10.3 I/O Ports ..................................................................................................................... 1-35

1.10.4 Termination of Unused Pins ..................................................................................... 1-38

1.10.5 Notes on Usage ......................................................................................................... 1-39

1.11 Interrupts ............................................................................................................................ 1-41

1.11.1 Block Diagram ............................................................................................................ 1-42

1.11.2 Registers Associated with Interrupt Control ........................................................... 1-43

1.11.3 Interrupt Sources ....................................................................................................... 1-47

1.11.4 Interrupt Sequence .................................................................................................... 1-49

1.11.5 Interrupt Control ......................................................................................................... 1-53

1.11.6 Setting of Interrupts ................................................................................................... 1-54

1.11.7 Notes on Usage ......................................................................................................... 1-56

7480 Scheda tecnica(PDF) 6 Page - Renesas Technology Corp