EM77950
BB Controller
Pull High
Schmitt
Trigger
Open
Drain
Pin #
Symbol
Type
Function Description
Clock of SPI
/50KΩ
23 SCK/PTC2
I/O
√
−
−
−
√
√
√
√
√
√
√
√
Pin 2 of Port C
External interrupt Pin 0
Pin 3 of Port C
24 EINT0/ PTC3
25 EINT1/ PTC4
26 PWM1/PTC5
I/O
I/O
I/O
External interrupt Pin 1
Pin 4 of Port C
Pin 5 of Port C
PWM1 output
27
PLLC
−
O
I
−
−
−
−
−
−
−
−
−
External capacitor for PLL circuit
Output of crystal oscillator
Input of crystal oscillator
28 OSCO1
29 OSCI
Pins 0~7 of Port D
Inputs 0~7 of ADC
PTD0~7,
ADC0~7
31~38
I/O
I
−
−
−
√
−
√
−
−
−
39 VREF
Reference voltage for ADC
Pins 0~3 of Port E
Inputs 8~B of ADC
PTE0~3,
ADC8~B
40~43
I/O
Power supply for analog circuit. The power
source value should be within the range of the
operating voltage.
44 AVDD
−
−
−
−
8 •
Product Specification (V1.0) 10.09.2007
(This specification is subject to change without further notice)
ELAN [ ELAN MICROELECTRONICS CORP ]
