AT85C5122D-RDRUM datasheet(60/208 Pages) ATMEL

60 / 208 page

AT83R5122, AT8xC5122/23

4202F–SCR–07/2008

Reset Value = 0000 0000b

Reset Value = xxxx 00xxb

Table 38.

Port Mode Register 1 - PMOD1 (84h) for AT8xC5122

7654

3210

P5HC1

P5HC0

P5MC1

P5MC0

P5LC1

P5LC0

P4C1

P4C0

Bit Number

Bit Mnemonic

Description

7 - 6

P5HC1-P5HC0

Port 5 High Configuration bits (Applicable from P5.6 to P5.7 only)

Quasi bi-directional

Push-pull

Input with weak pull-down

Input with weak pull-up

5 - 4

P5MC1-P5MC0

Port 5 Medium Configuration bits (Applicable from P5.3 to P5.5 only)

Quasi bi-directional

Push-pull

Input with weak pull-down

Input with weak pull-up

3 - 2

P5LC1-P5LC0

Port 5 Low Configuration bits (Applicable from P5.0 to P5.2 only)

Quasi bi-directional

Push-pull

Input with medium pull-up

Input with weak pull-up

1 - 0

P4C1-P4C0

Port 4 Configuration bits (Applicable from P4.3 to P4.5 only)

Quasi bi-directional

Push-pull

Output Low Speed

Input with medium pull-up

Table 39.

Port Mode Register 1 - PMOD1 (84h) for AT83C5123

7654

3210

P5LC1

P5LC0

Bit Number

Bit Mnemonic

Description

7 - 4

Reserved

The value read from this bit is indeterminate. Do not set this bit.

3 - 2

P5LC1-P5LC0

Port 5 Low Configuration bits (Applicable from P5.0 to P5.2 only)

Quasi bi-directional

Push-pull

Input with medium pull-up

Input with weak pull-up

1 - 0

Reserved

The value read from this bit is indeterminate. Do not set this bit.

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