Pin Description
Pin Definition
Pin Name
RST
Pin Name
1
TYPE
ID
RST:
=
A high duty on this pin keeps for at least 10us plus
36 oscillation cycles will reset the device.
P3.0 (RXD)
2
BU
P3.0:
=
General purpose 4-state I/O port with internal pull-up
mechanism; can be configured as open-drain
output.
RXD:
=
Data Receiving pin for built-in UART functionality.
P3.1 (TXD)
3
BU
P3.1:
=
General purpose 4-state I/O port with internal pull-up
mechanism; can be configured as open-drain
output.
TXD:
=
Data Transmitting pin for built-in UART functionality.
XTALO
4
O
XTALO: =
Output from the inverting oscillator amplifier.
XTALI
5
I
XTALI:
=
Input to the inverting oscillator amplifier.
P3.2 (INT0)
6
BU
P3.2:
=
General purpose 4-state I/O port with internal pull-up
mechanism; can be configured as open-drain
output.
INT0:
=
External interrupt source
P3.3 (INT1)
7
BU
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
DESCRIPTION
6
MPC82x52A Data Sheet
MEGAWIN
MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
