7630 datasheet(71/238 Pages) RENESAS

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APPLICATION

2.1 I/O ports

2-5

7630 Group User’s Manual

Fig. 2.1.6 Structure of Port P3 pull-up control register

Fig. 2.1.7 Structure of Port P4 pull-up/down control register

Port P3 pull-up control register

b7 b6 b5 b4 b3 b2 b1 b0

Function

At reset

Name

Port P3 pull-up control register (PUP3) [Address : 002B16]

P32 pull-up/down transistor

control bit

0 : No pull-up/down

1 : Pull-up/down (Note)

P33 pull-up transistor control bit

0 : No pull-up

1 : Pull-up

P34 pull-up transistor control bit

0 : No pull-up

1 : Pull-up

Not used (“0” when read, don't write “1”.)

P30 pull-up transistor control bit

0 : No pull-up

1 : Pull-up

P31 pull-up transistor control bit

0 : No pull-up

1 : Pull-up

Note: Enables the pull-transistor towards the CAN module recessive level. This level

depends on the CAN module dominant level control bit (bit 1 of the Polarity control

Port P4 pull-up/down control register

b7 b6 b5 b4 b3 b2 b1 b0

Function

At reset

Name

Port P4 pull-up/down control register (PUP4) [Address : 002C16]

0 : No pull-up/down

1 : Pull-up/down (Note)

P40 pull-up/down transistor

control bit

P41 pull-up/down transistor

control bit

P42 pull-up/down transistor

control bit

P43 pull-up/down transistor

control bit

P44 pull-up/down transistor

control bit

P45 pull-up/down transistor

control bit

P46 pull-up/down transistor

control bit

P47 pull-up/down transistor

control bit

0 : No pull-up/down

1 : Pull-up/down (Note)

0 : No pull-up/down

1 : Pull-up/down (Note)

0 : No pull-up/down

1 : Pull-up/down (Note)

0 : No pull-up/down

1 : Pull-up/down (Note)

0 : No pull-up/down

1 : Pull-up/down (Note)

0 : No pull-up/down

1 : Pull-up/down (Note)

0 : No pull-up/down

1 : Pull-up/down (Note)

Note: Enables the pull-transistor towards the passive polarity of key-on wake-up interrupt.

This level depends on the Key-on wake-up polarity control bit (bit 0 of the Polarity

control register [address: 002F16] ).

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