M38046F3HKP datasheet(19/116 Pages) RENESAS

19 / 116 page

Rev.1.01

Jan 25, 2005

page 19 of 114

REJ03B0131-0101Z

3804 Group (Spec. H)

Fig. 16 Structure of port pull-up control register (2)

Port P2 pull-up control register

b7b0

P20 pull-up control bit

0: No pull-up

1: Pull-up

P21 pull-up control bit

0: No pull-up

1: Pull-up

P22 pull-up control bit

0: No pull-up

1: Pull-up

P23 pull-up control bit

0: No pull-up

1: Pull-up

P24 pull-up control bit

0: No pull-up

1: Pull-up

P25 pull-up control bit

0: No pull-up

1: Pull-up

P26 pull-up control bit

0: No pull-up

1: Pull-up

P27 pull-up control bit

0: No pull-up

1: Pull-up

Port P3 pull-up control register

P30 pull-up control bit

0: No pull-up

1: Pull-up

P31 pull-up control bit

0: No pull-up

1: Pull-up

Not used

(return “0” when read)

P34 pull-up control bit

0: No pull-up

1: Pull-up

P35 pull-up control bit

0: No pull-up

1: Pull-up

P36 pull-up control bit

0: No pull-up

1: Pull-up

P37 pull-up control bit

0: No pull-up

1: Pull-up

(PULL3: address 0FF316)

(PULL2: address 0FF216)

Note: Pull-up control is valid when the corresponding bit

of the port direction register is “0” (input).

When that bit is “1” (output), pull-up cannot be set

to the port of which pull-up is selected.

Note: Pull-up control is valid when the corresponding bit

of the port direction register is “0” (input).

When that bit is “1” (output), pull-up cannot be set

to the port of which pull-up is selected.

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