MB89550A Datasheet, PDF (23/51 Pages) Fujitsu Component Limited. – 8-bit Proprietary Microcontroller

• Extended I/O Area
Address Abbreviation
Resister Name
480H
WRARH1 H address setting register 1
481H
WRARL1 L address setting register 1
482H
WRDR1 Data setting register 1
483H
WRARH2 H address setting register 2
484H
WRARL2 L address setting register 2
485H
WRDR2 Data setting register 2
486H
WRARH3 H address setting register 3
487H
WRARL3 L address setting register 3
488H
WRDR3 Data setting register 3
489H
WRARH4 H address setting register 4
48AH
WRARL4 L address setting register 4
48BH
WRDR4 Data setting register 4
48CH
WRARH5 H address setting register 5
48DH
WRARL5 L address setting register 5
48EH
WRDR5 Data setting register 5
48FH
WRARH6 H address setting register 6
490H
WRARL6 L address setting register 6
491H
WRDR6 Data setting register 6
O Read/write notation
• R/W : Reading and writing enabled
• R : Read-only
• W : Write only
O Initial value notation
• 0 : Initial value of bit is “0”.
• 1 : Initial value of bit is “1”.
• X : Initial value of bit is undefined.
Note : Areas indicated as "unused area" are not to be used.
MB89550A Series
Read/Write
R/W
R/W
W
R/W
R/W
W
R/W
R/W
W
R/W
R/W
W
R/W
R/W
W
R/W
R/W
W
Initial Value
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
XXXXXXXX
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