Renesas H8S/2111B Manual de usuario descargar pdf (Pagina 170)

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Rev. 1.00, 05/04, page 136 of 544

7.13 Ports E, F

Ports E and F are two sets of 8-bit I/O ports. Port F also functions as I/O pins for TMR_X*,

TMR_Y*, TMR_A, and TMR_B. Ports E and F have the following registers.

• Port E data direction register (PEDDR)

• Port E output data register (PEODR)

• Port E input data register (PEPIN)

• Port E Nch-OD control register (PENOCR)

• Port F data direction register (PFDDR)

• Port F output data register (PFODR)

• Port F input data register (PFPIN)

• Port F Nch-OD control register (PFNOCR)

Note: * The program development tool (emulator) does not support this function.

7.13.1 Port E and Port F Data Direction Registers (PEDDR, PFDDR)

PEDDR and PFDDR select input or output for the pins of port E and port F on a bit-by-bit basis.

Bit Bit Name

Initial

Value

R/W Description

7 PE7DDR 0 W

6 PE6DDR 0 W

5 PE5DDR 0 W

4 PE4DDR 0 W

3 PE3DDR 0 W

2 PE2DDR 0 W

1 PE1DDR 0 W

0 PE0DDR 0 W

0: Port E pin is an input pin

1: Port E pin is an output pin

PEDDR has the same address as PEPIN, and if read,

the port E pin states will be returned.

Bit Bit Name

Initial

Value R/W Description

7 PF7DDR 0 W

6 PF6DDR 0 W

5 PF5DDR 0 W

4 PF4DDR 0 W

3 PF3DDR 0 W

2 PF2DDR 0 W

1 PF1DDR 0 W

0 PF0DDR 0 W

0: Port F pin is an input pin

1: Port F pin is an output pin

PFDDR has the same address as PFPIN, and if read,

the port F pin states will be returned.

1 2 ... 165 166 167 168 169 170 171 172 173 174 175 ... 581 582

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Renesas H8S/2111B Manual de usuario Pagina 170

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