NEC V854 UPD703006, User Manual

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User’s Manual U11969EJ3V0UM00
TABLE OF CONTENTS
CHAPTER 1 INTRODUCTION .............................................................................................................. 23
1.1 General ..................................................................................................................................... 23
1.2 Features ................................................................................................................................... 24
1.3 Application Fields ................................................................................................................... 25
1.4 Ordering Information .............................................................................................................. 25
1.5 Pin Identification (Top View) ................................................................................................. 26
1.6 Function Block Configuration ............................................................................................... 28
1.6.1 Internal block diagram ................................................................................................................. 28
1.6.2 Internal units ................................................................................................................................. 29
CHAPTER 2 PIN FUNCTIONS ............................................................................................................. 31
2.1 Pin Function List ..................................................................................................................... 31
2.2 Pin Status ................................................................................................................................. 36
2.3 Pin Function ............................................................................................................................ 37
2.4 Pin I/O Circuit Type and Connection of Unused Pins ....................................................... 47
2.5 I/O Circuits of Pins ................................................................................................................. 48
CHAPTER 3 CPU FUNCTIONS ........................................................................................................... 49
3.1 Features ................................................................................................................................... 49
3.2 CPU Register Set .................................................................................................................... 50
3.2.1 Program register set .................................................................................................................... 51
3.2.2 System register set ...................................................................................................................... 52
3.3 Operation Modes ..................................................................................................................... 54
3.3.1 Operation modes ......................................................................................................................... 54
3.3.2 Specifying operation mode .......................................................................................................... 54
3.4 Address Space ........................................................................................................................ 56
3.4.1 CPU address space ..................................................................................................................... 56
3.4.2 Image (Virtual Address Space) ................................................................................................... 57
3.4.3 Wrap-around of CPU address space .......................................................................................... 58
3.4.4 Memory map ................................................................................................................................ 59
3.4.5 Area .............................................................................................................................................. 60
3.4.6 External expansion mode ............................................................................................................ 67
3.4.7 Recommended use of address space ........................................................................................ 69
3.4.8 Peripheral I/O registers ............................................................................................................... 71
3.4.9 Specific registers .......................................................................................................................... 77
CHAPTER 4 BUS CONTROL FUNCTION .......................................................................................... 81
4.1 Features ................................................................................................................................... 81
4.2 Bus Control Pins and Control Register ............................................................................... 82
4.2.1 Bus control pins ........................................................................................................................... 82
4.2.2 Control register ............................................................................................................................ 82
4.3 Bus Access .............................................................................................................................. 83
4.3.1 Number of access clocks ............................................................................................................ 83