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CONTENTS
CHAPTER 1 GENERAL DESCRIPTION ................................................................................................ 13
1.1 Features.........................................................................................................................................................13
1.2 Symbol Diagram ............................................................................................................................................13
1.3 Differences between V30MZ and V30HL, V30MX.........................................................................................14
CHAPTER 2 PIN FUNCTIONS................................................................................................................ 17
2.1 Pin List...........................................................................................................................................................17
2.2 Pin Statuses...................................................................................................................................................18
2.3 Description of Pin Statuses............................................................................................................................19
2.3.1 Normal pins.........................................................................................................................................19
2.3.2 Test Pins.............................................................................................................................................22
2.3.3 Reserved pins.....................................................................................................................................22
2.4 Handling of Unused Pins...............................................................................................................................23
CHAPTER 3 CPU FUNCTIONS.............................................................................................................. 25
3.1 Register Configuration...................................................................................................................................25
3.1.1 General-purpose registers (AW, BW, CW, DW) .................................................................................25
3.1.2 Segment registers (PS, SS, DS0, DS1)..............................................................................................25
3.1.3 Pointer (SP, BP)..................................................................................................................................25
3.1.4 Program counter (PC).........................................................................................................................26
3.1.5 Program status word (PSW) ...............................................................................................................26
3.1.6 Index register (IX, IY)..........................................................................................................................30
3.2 Address Space ..............................................................................................................................................31
3.2.1 Memory space ....................................................................................................................................31
3.2.2 I/O space.............................................................................................................................................32
3.3 Instruction Prefetch........................................................................................................................................33
3.4 Logical Address and Physical Address..........................................................................................................34
3.4.1 Segment system.................................................................................................................................34
3.4.2 Segment configuration........................................................................................................................35
3.4.3 Dynamic relocation .............................................................................................................................37
3.5 Effective Address...........................................................................................................................................39
3.6 Instruction Set................................................................................................................................................40
3.6.1 List of instruction sets by function.......................................................................................................40
3.6.2 Format of object code.........................................................................................................................41
3.7 Addressing Mode...........................................................................................................................................42
3.7.1 Instruction address .............................................................................................................................42
3.7.2 Data address.......................................................................................................................................43
CHAPTER 4 BUS CONTROL FUNCTIONS.......................................................................................... 47
4.1 Interface between V30MZ and Memory.........................................................................................................47
4.1.1 Cautions on accessing word data.......................................................................................................48
4.2 Interface between V30MZ and I/O.................................................................................................................49
4.3 Read/Write Timing of Memory and I/O ..........................................................................................................50
4.3.1 Read timing of memory and I/O..........................................................................................................50
4.3.2 Write timing of memory and I/O ..........................................................................................................52
4.4 Bus Hold Function .........................................................................................................................................54