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uPD789871 Subseries 8-Bit Single-Chip Microcontrollers PUM

uPD789871 Subseries 8-Bit Single-Chip Microcontrollers PUM

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32<br />

Data<br />

memory space<br />

Program<br />

memory space<br />

FFFFH<br />

FF00H<br />

FEFFH<br />

FD00H<br />

FCFFH<br />

FA60H<br />

FA5FH<br />

FA00H<br />

F9FFH<br />

2000H<br />

1FFFH<br />

0000H<br />

CHAPTER 3 CPU ARCHITECTURE<br />

Figure 3-2. Memory Map (µPD789871)<br />

Special function registers<br />

256 × 8 bits<br />

Internal high-speed RAM<br />

512 × 8 bits<br />

Reserved<br />

VFD display RAM<br />

96 × 8 bits<br />

Reserved<br />

Internal ROM<br />

8,192 × 8 bits<br />

Preliminary User’s Manual U14938EJ1V0UM<br />

1FFFH<br />

0080H<br />

007FH<br />

0040H<br />

003FH<br />

001CH<br />

001BH<br />

0000H<br />

Program area<br />

CALLT table area<br />

Program area<br />

Vector table area

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