Renesas H8S/2111B Manual do Utilizador descarregar pdf (Página 137)

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101

Rev. 1.00, 05/04, page 103 of 544

7.2.2 Port 2 Data Register (P2DR))

P2DR stores output data for port 2.

Bit Bit Name

Initial

Value R/W Description

7 P27DR 0 R/W

6 P26DR 0 R/W

5 P25DR 0 R/W

4 P24DR 0 R/W

3 P23DR 0 R/W

2 P22DR 0 R/W

1 P21DR 0 R/W

0 P20DR 0 R/W

If a port 2 read is performed while P2DDR bits are set

to 1, the P2DR values are read directly, regardless of

the actual pin states. If a port 2 read is performed while

P2DDR bits are cleared to 0, the pin states are read.

7.2.3 Port 2 Pull-Up MOS Control Register (P2PCR)

P2PCR controls the port 2 on-chip input pull-up MOSs.

Bit Bit Name

Initial

Value R/W Description

7 P27PCR 0 R/W

6 P26PCR 0 R/W

5 P25PCR 0 R/W

4 P24PCR 0 R/W

3 P23PCR 0 R/W

2 P22PCR 0 R/W

1 P21PCR 0 R/W

0 P20PCR 0 R/W

The input pull-up MOS is turned on when a P2PCR bit

is set to 1 in the input port state.

7.2.4 Pin Functions

• P27, P26, P25, P24, P23, P22, P21, P20

The pin function is switched as shown below according to the state of the P2nDDR bit.

P2nDDR 0 1

Pin Function P27 to P20 input pins P27 to P20 output pins

[Legend]

n = 7 to 0

1 2 ... 132 133 134 135 136 137 138 139 140 141 142 ... 581 582

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