Table of Contents
Advertisement
CONTENTS
OVERVIEW ................................................................................................... 1
1.1
Feature of MB90335 Series ................................................................................................................ 2
1.2
Block Diagram .................................................................................................................................... 7
1.3
Package Dimension ............................................................................................................................ 8
1.4
Pin Assignment ................................................................................................................................... 9
1.5
Pin Function ...................................................................................................................................... 10
1.6
I/O Circuit Types ............................................................................................................................... 13
1.7
Handling of Device ............................................................................................................................ 16
CPU ............................................................................................................ 19
2.1
Overview of the CPU ........................................................................................................................ 20
2.2
Memory Space .................................................................................................................................. 21
2.3
Linear Addressing ............................................................................................................................. 24
2.4
Bank Addressing ............................................................................................................................... 25
2.5
Multibyte Data in Memory Space ...................................................................................................... 27
2.6
Registers ........................................................................................................................................... 28
2.6.1
Accumulator (A) ........................................................................................................................... 31
2.6.2
User Stack Pointer (USP) and System Stack Pointer (SSP) ....................................................... 32
2.6.3
Processor Status (PS) ................................................................................................................. 33
2.6.4
Program Counter (PC) ................................................................................................................. 36
2.6.5
Bank Registers (PCB, DTB, USB, SSB, ADB) ............................................................................ 37
2.6.6
Direct Page Register (DPR) ........................................................................................................ 38
2.7
Register Bank ................................................................................................................................... 39
2.8
Prefix Codes ..................................................................................................................................... 40
2.9
Interrupt Disable Instructions ............................................................................................................ 43
INTERRUPT ............................................................................................... 45
3.1
Outline of Interrupt ............................................................................................................................ 46
3.2
Interrupt Cause and Interrupt Vector ................................................................................................ 49
3.3
Interrupt Control Register and Peripheral Function .......................................................................... 52
3.3.1
Interrupt Control Registers (ICR00 to ICR15) .............................................................................. 54
3.3.2
Interrupt Control Register Functions ............................................................................................ 56
3.4
Hardware Interrupt ............................................................................................................................ 59
3.4.1
Operation of Hardware Interrupt .................................................................................................. 62
3.4.2
Operation Flow of Hardware Interrupt ......................................................................................... 64
3.4.3
Procedure for Using a Hardware Interrupt ................................................................................... 65
3.4.4
Multiple Interrupts ........................................................................................................................ 66
3.4.5
Hardware Interrupt Processing Time ........................................................................................... 68
3.5
Software Interrupt ............................................................................................................................. 70
3.6
3.6.1
3.6.2
Each Register of Extended Intelligent I/O Service (EI
3.6.3
2
OS) ..................................................................... 72
2
OS) Descriptor (ISD) .......................................................... 74
2
OS) Descriptor (ISD) .............................. 76
2
OS) ................................................................ 79
v
Advertisement
Table of Contents
