NEC uPD78052(A) User Manual

µ

0000H

General Registers

32 

×

 8 bits

Internal ROM

32768 

×

 8 bits

Internal Buffer RAM

32 

×

 8 bits

External Memory

31360 

×

 8 bits

Reserved

8000H
7FFFH

FA80H
FA7FH

FAC0H
FABFH

FAE0H
FADFH

FEE0H
FEDFH

FF00H
FEFFH

FFFFH

Internal High-speed RAM

1024 

×

 8 bits

Reserved

FB00H
FAFFH

FF20H
FF1FH

FE20H
FE1FH

Special Function 
Registers (SFRs)

256 

×

 8 bits

SFR Addressing

Register Addressing

Short Direct 
Addressing

Direct Addressing

Register Indirect
Addressing

Based Addressing

Based Indexed
Addressing