User's Manual

8
2.2 Pin Assignment
Pin No. Name Pin function Description
(1)(2) GND
Ground The pad must be connected to a solid ground plane
(3) AVDD
Power Analog power supply
(4) P0.21
Digital I/O General-purpose digital I/O
(5) P0.22
Digital I/O General-purpose digital I/O
(6) P0.23
Digital I/O General-purpose digital I/O
(7) P0.24
Digital I/O General-purpose digital I/O
(8) P0.25
Digital I/O General-purpose digital I/O
(9)
P0.26
Digital I/O General-purpose digital I/O
AIN0
Analog input ADC input 0
XL2
Analog output Connector for 32.768KHz crystal
(10)
P0.27
Digital I/O General-purpose digital I/O
AIN1
Analog input ADC input 1
XL1
Analog input
Connector for 32.768KHz crystal or external 32.768KHz clock
reference
(11) P0.28
Digital I/O General-purpose digital I/O
(12) P0.29
Digital I/O General-purpose digital I/O
(13) GND
Ground The pad must be connected to a solid ground plane
(14) VDD
Power Power supply
(15) DCC
Power DC/DC output voltage to external LC filter
(16) P0.30
Digital I/O General-purpose digital I/O
(17)
P0.00
Digital I/O General-purpose digital I/O
AREF0
Analog input ADC Reference voltage
(18)
P0.01
Digital I/O General-purpose digital I/O
AIN2
Analog input ADC input 2
(19)
P0.02
Digital I/O General-purpose digital I/O
AIN3
Analog input ADC input 3
(20)
P0.03
Digital I/O General-purpose digital I/O
AIN4
Analog input ADC input 4
(21)
P0.04
Digital Input General-purpose digital I/O
AIN5
Analog input ADC input 5
(22)
P0.05
Digital I/O General-purpose digital I/O
AIN6
Analog input ADC input 6