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8XC196NP, 80C196NU USER’S MANUAL
C-32
Px_PIN
P
x
_PIN
x
= 1–4
Address:
Reset State:
Table C-13
Each bit of the port
x
pin input (P
x
_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
Mnemonic
Function
7:0 PIN7:0 Port
x
Pin
y
Input Value
This bit contains the current state of P
x
.
y
.
Table C-13. P
x
_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