Intel 80C196NU manual Table C-13. PxPIN Addresses and Reset Values, XPIN Address, Bit Number

Models: Microcontroller 80C196NU 8XC196NP

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8XC196NP, 80C196NU USER’S MANUAL

Px_PIN

Px_PIN

Address:

Table C-13

x = 1–4

Reset State:

 

Each bit of the port x pin input (Px_PIN) register reflects the current state of the corresponding pin, regardless of the pin configuration.

 

7

 

 

 

 

 

 

 

 

0

x = 1–3

 

PIN7

PIN6

PIN5

PIN4

 

PIN3

 

PIN2

PIN1

PIN0

 

 

7

 

 

 

 

 

 

 

 

0

x = 4

 

 

 

 

 

 

 

 

 

 

 

 

 

PIN3

 

PIN2

PIN1

PIN0

 

 

 

 

 

 

 

 

 

 

 

 

Bit Number

 

Bit

 

 

 

Function

 

 

 

Mnemonic

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7:0

PIN7:0

Port x Pin y Input Value

 

 

 

 

 

 

 

 

 

This bit contains the current state of Px.y.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table C-13. Px_PIN Addresses and Reset Values

Register

Address

Reset Value

 

 

 

P1_PIN

1FD6H

XXH

 

 

 

P2_PIN

1FD7H

XXH

 

 

 

P3_PIN

1FDEH

XXH

 

 

 

P4_PIN

1FDFH

XXH

 

 

 

C-32

Page 423
Image 423
Intel 80C196NU, 8XC196NP, Microcontroller manual Table C-13. PxPIN Addresses and Reset Values, XPIN Address, Bit Number