R8A66153FP 查看數據表（PDF） - Renesas Electronics

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R8A66153FP

PROGRAMMABLE BUFFERED I/O EXPANDER

Renesas Electronics 

R8A66153FP

CONTROL WORD

When (A0, A1, A2)=(1,1,1), data bus data is recognized as the control word.

This control word is to set the port condition and the bit set/reset function of port C. (see Fig.1 and Fig.2)

"1" when mode set control word

don't care

Port E enable/disable set

Port F enable/disable set

"0" : Enable

"1" : Disable

D7 D6 D5 D4 D3 D2 D1 D0

Port A input/output s et

Port B input/output set

Port C input/output set (Upper 4-bit)

Port C input/output set (Lower 4-bit)

"0" : Output

"1" : Input

Fig.1 Control word to set port conditions

"0" when port C bit set/reset function

don't care

Bit select (see below)

Bit select

D3

D2

D1

PC7

PC6

PC5

PC4

PC3

PC2

PC1

PC0

1

1

1

1

1

0

1

0

1

1

0

0

0

1

1

0

1

0

0

0

1

0

0

0

Set/res et

D7 D6 D5 D4 D3 D2 D1 D0

"0" : Reset ("L")

"1" : Set ("H")

Fig.2 Control word for bit set/reset function of port C

REJ03F0260-0100 Rev.1.00 Jan.10.2008

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