7630 datasheet(69/238 Pages) RENESAS

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APPLICATION

2.1 I/O ports

2-3

7630 Group User’s Manual

2.1.2 Related registers

Fig. 2.1.2 Structure of Port Pi register (i = 0, 1, 2, 3, 4)

Port Pi register

b7 b6 b5 b4 b3 b2 b1 b0

Function

At reset

Name

Port Pi0

Port Pi1

Port Pi2

Port Pi3

Port Pi4

Port Pi5

Port Pi6

Port Pi7

• In output mode

Write

Read

Port latch

• In input mode

Write : Port latch

Read : Value of pins

Port Pi register (Pi) (i = 0, 1, 2, 3, 4)

[Address : 000816, 000A16, 000C16, 000E16, 001016]

Note: The bits corresponding to P10, P35, P36 and P37 are reserved (“0” when read, don't

write “1”).

Fig. 2.1.3 Structure of Port Pi direction register (i = 0, 1, 2, 3, 4)

Port Pi direction register

b7 b6 b5 b4 b3 b2 b1 b0

Function

At reset

Name

Port Pi direction register

Port Pi direction register (PiD) (i = 0, 1, 2, 3, 4)

[Address : 000916, 000B16, 000D16, 000F16, 001116]

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

Note: The direction control bits corresponding to P10, P11, P35, P36 and P37 are reserved

(“0” when read, don't write “1”).

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