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NEC PD78F9488 User Manual

Page 57

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CHAPTER 3 CPU ARCHITECTURE

User’s Manual U15331EJ4V1UD

57

Figure 3-8. Data Memory Addressing (

µPD78F9489)

Direct addressing

Register indirect addressing

Based addressing

SFR addressing

Short direct addressing

F F F F H

C 0 0 0 H

B F F F H

0 0 0 0 H

F F 0 0 H

F E F F H

F F 2 0 H

F F 1 F H

F E 2 0 H

F E 1 F H

F B 0 0 H

F A F F H

F A 1 C H

F A 1 B H

F 7 0 0 H

F 6 F F H

F A 0 0 H
F 9 F F H

F 5 0 0 H

F 4 F F H

Special function registers

256

×

8 bits

Internal high-speed RAM

1024

×

8 bits

LCD display RAM

28

×

4 bits

Internal low-speed

512

×

8 bits

Reserved

Reserved

Reserved

Flash memory
49152

×

8 bits

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