upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 18

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

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CPU Register Set ............................................................................................................................................60
CPU Address Space........................................................................................................................................66
Image on Address Space ................................................................................................................................67
Program Space................................................................................................................................................68
Data Space ......................................................................................................................................................68
Memory Map....................................................................................................................................................69
Internal ROM Area (64 KB)..............................................................................................................................70
Internal ROM Area (128 KB)............................................................................................................................70
Internal ROM/Internal Flash Memory Area (256 KB) .......................................................................................71
Internal RAM Area (4 KB) ................................................................................................................................73
Internal RAM Area (8 KB) ................................................................................................................................73
On-Chip Peripheral I/O Area............................................................................................................................74
External Memory Area (When Expanded to 64 KB, 256 KB, or 1 MB) ............................................................75
External Memory Area (When Expanded to 4 MB) ..........................................................................................76
Application Example of Wraparound................................................................................................................79
Recommended Memory Map...........................................................................................................................80
Byte Access (8 Bits).........................................................................................................................................91
Halfword Access (16 Bits)................................................................................................................................91
Word Access (32 Bits) .....................................................................................................................................91
Memory Space.................................................................................................................................................92
Wait Control .....................................................................................................................................................94
Example of Inserting Wait States.....................................................................................................................94
Bus Hold Procedure.........................................................................................................................................97
Memory Read .................................................................................................................................................98
Memory Write ...............................................................................................................................................102
Bus Hold Timing ............................................................................................................................................104
Non-Maskable Interrupt Servicing..................................................................................................................110
Acknowledging Non-Maskable Interrupt Request ..........................................................................................111
RETI Instruction Processing ..........................................................................................................................112
NP Flag (NP) .................................................................................................................................................113
Maskable Interrupt Servicing .........................................................................................................................116
RETI Instruction Processing ..........................................................................................................................117
Example of Multiple Interrupt Servicing ........................................................................................................119
Example of Servicing Interrupt Requests Generated Simultaneously............................................................121
Interrupt Disable Flag (ID) .............................................................................................................................126
Software Exception Processing .....................................................................................................................127
RETI Instruction Processing ..........................................................................................................................128
EP Flag (EP)..................................................................................................................................................129
LIST OF FIGURES (1/6)
User’s Manual U12768EJ4V1UD
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