P0.1
10
BU
P0.1:
=
General purpose 4-state I/O port with
internal pull-up mechanism; can be
configured as open-drain output.
P3.3:
=
General purpose 4-state I/O port with
internal pull-up mechanism; can be
configured as open-drain output.
INT1:
=
External interrupt source
P3.4:
=
General purpose 4-state I/O port with
internal pull-up mechanism; can be
configured as open-drain output.
ECI:
=
External Clock Input to
Programmable Counter Array (PCA)
T0:
=
Alternative clock input to timer-0
P3.5:
=
General purpose 4-state I/O port with
internal pull-up mechanism; can be
configured as open-drain output.
CEX1:
=
Capture Event trigger to
Programmable Counter Array (PCA)
module-1 or PWM output
T1:
=
Alternative clock input to timer-1
P2.4:
=
General purpose 4-state I/O port with
internal pull-up mechanism; can be
configured as open-drain output.
CEX3:
=
Capture Event trigger to
Programmable Counter Array (PCA)
module-3 or PWM output
P2.5:
=
General purpose 4-state I/O port with
internal pull-up mechanism; can be
configured as open-drain output.
Ground
P2.6:
=
General purpose 4-state I/O port with
internal pull-up mechanism; can be
configured as open-drain output.
P3.3 (INT1)
11
9
7
BU
P3.4 (ECI/T0)
12
10
8
BU
P3.5 (CEX1/T1)
13
11
9
BU
P2.4 (CEX3)
14
12
BU
P2.5
15
13
BU
VSS
P2.6
16
17
14
15
10
G
BU
MEGAWIN
MPC82x54A Data Sheet
7