EM78F651NAMSSLASHNAMJ datasheet(19/58 Pages) EMC

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EM78F651N

8-Bit Microcontroller

Product Specification (V1.1) 10.20.2006

• 15

(This specification is subject to change without further notice)

6.2.5 IOCB (Pull-down Control Register)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

/PD7

/PD6

/PD5

/PD4

/PD3

/PD2

/PD1

/PD0

Bit 7 (/PD7): Control bit used to enable the of P63 pull-down pin

0 : Enable internal pull-down

1 : Disable internal pull-down

Bit 6 (/PD6): Control bit used to enable the P62 pull-down pin

Bit 5 (/PD5): Control bit used to enable the P61 pull-down pin

Bit 4 (/PD4): Control bit used to enable the P60 pull-down pin

Bit 3 (/PD3): Control bit used to enable the P53 pull-down pin

Bit 2 (/PD2): Control bit used to enable the P52 pull-down pin

Bit 1 (/PD1): Control bit used to enable the P51 pull-down pin

Bit 0 (/PD0): Control bit used to enable the P50 pull-down pin

The IOCB Register is both readable and writable.

6.2.6 IOCC (Open-drain Control Register)

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

OD7

OD6

OD5

OD4

OD3

OD2

OD1

OD0

Bit 7 (OD7): Control bit used to enable the open-drain output of P67 pin

0 : Disable open-drain output

1 : Enable open-drain output

Bit 6 (OD6): Control bit used to enable the open-drain output of P66 pin

Bit 5 (OD5): Control bit used to enable the open-drain output of P65 pin

Bit 4 (OD4): Control bit used to enable the open-drain output of P64 pin

Bit 3 (OD3): Control bit used to enable the open-drain output of P63 pin

Bit 2 (OD2): Control bit used to enable the open-drain output of P62 pin

Bit 1 (OD1): Control bit used to enable the open-drain output of P61 pin

Bit 0 (OD0): Control bit used to enable the open-drain output of P60 pin

The IOCC Register is both readable and writable.

EM78F651NAMS/NAMJ Datenblatt(PDF) 19 Page - ELAN Microelectronics Corp

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