7643 datasheet(125/424 Pages) RENESAS

125 / 424 page

Rev.2.00

Aug 28, 2006

page 4 of 202

7643 Group

REJ09B0133-0200

APPLICATION

2.1 I/O Port

Fig. 2.1.4 Structure of Port Pi direction register (i = 0, 1, 2, 3, 5, 6, 8)

Fig. 2.1.5 Structure of Port P4 direction, Port P7 direction registers

Port Pi direction register

b7 b6 b5 b4 b3 b2 b1 b0

Port Pi direction register (i = 0, 1, 2, 3, 5, 6, 8)

(PiD : addresses 0916, 0B16, 0D16, 0F16, 1716, 1516, 1D16)

Name

Functions

At reset R W

0 : Port Pi1 input mode

1 : Port Pi1 output mode

0 : Port Pi0 input mode

1 : Port Pi0 output mode

0 : Port Pi2 input mode

1 : Port Pi2 output mode

Port Pi direction register

0 : Port Pi4 input mode

1 : Port Pi4 output mode

0 : Port Pi3 input mode

1 : Port Pi3 output mode

0 : Port Pi5 input mode

1 : Port Pi5 output mode

0 : Port Pi6 input mode

1 : Port Pi6 output mode

0 : Port Pi7 input mode

1 : Port Pi7 output mode

Port P4, P7 direction registers

b7 b6 b5 b4 b3 b2 b1 b0

Port P4 direction register, Port P7 direction register

(P4D, P7D : addresses 1916, 1B16)

Name

Functions

At reset R W

0 : Port P41 or P71 input mode

1 : Port P41 or P71 output mode

0 : Port P40 or P70 input mode

1 : Port P40 or P70 output mode

0 : Port P42 or P72 input mode

1 : Port P42 or P72 output mode

Port P4 direction register

Port P7 direction register

0 : Port P44 or P74 input mode

1 : Port P44 or P74 output mode

0 : Port P43 or P73 input mode

1 : Port P43 or P73 output mode

Nothing is arranged for these bits.

When these bits are read out, the contents are undefined.

Undefined

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