7220 datasheet(249/303 Pages) RENESAS

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APPENDIX

6.7 Control registers

7220 Group User’s Manual

6-30

6.7 Control registers

Fig. 6.7.1 Port Pi direction register

b7 b6 b5 b4 b3 b2 b1 b0

Port Pi direction register (Di) (i=0,1,2) [Addresses 00C116, 00C316, 00C516]

Name

Functions

After reset R W

Port Pi Direction Register

0 : Port Pi0 input mode

1 : Port Pi0 output mode

0 : Port Pi1 input mode

1 : Port Pi1 output mode

0 : Port Pi2 input mode

1 : Port Pi2 output mode

0 : Port Pi3 input mode

1 : Port Pi3 output mode

0 : Port Pi4 input mode

1 : Port Pi4 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 Pi direction register

Fig. 6.7.2 Port P3 direction register

b7 b6 b5 b4 b3 b2 b1 b0

Port P3 direction register (D3) [Address 00C716]

Name

Functions

After reset RW

Port P3 Direction Register

0 : Port P30 input mode

1 : Port P30 output mode

0 : Port P31 input mode

1 : Port P31 output mode

0 : Port P32 input mode

1 : Port P32 output mode

Port P3 direction register

Nothing is assigned. These bits are write disable bits.

When these bits are read out, the values are “0.”

R—

Addresses 00C116, 00C316, 00C516

Address 00C716

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