EM77950 datasheet(14/102 Pages) EMC

14 / 102 page

EM77950

BB Controller

•

Product Specification (V1.0) 10.09.2007

(This specification is subject to change without further notice)

Pin Description

The Table below shows the corresponding relationship between the pad and pins of EM77950A

Pin #

Symbol

Type

Schmitt

Trigger

Pull High

/50K

Open

Drain

Function Description

PTF0/OSCO2

I/O

−

√

−

Pin 0 of Port F

Selected PLL clock out

PF1

I/O

−

√

−

Pin 1 of Port F

3~6

KWU8~B,

PA0~3

I/O

−

√

−

Pins 0~3 of Port A (default).

Key Wake-up 8~B

/RST

−

√

−

Reset pin

8~10

PTA4~6

I/O

−

√

−

Pins 4~6 of Port A.

PWM0/PTA7

I/O

−

√

−

Pin 7 of Port A.

PWM0 output

12~19 PB0 ~ PB7

I/O

−

√

Pins 0~7 of Port B (default).

Key Wake-up 0~7

DVDD

−

Power supply for digital circuit. The power

source value should be within the range of the

operating voltage.

RF_ACT

−

BB/RF Active

TXRX

−

Transceiver modes control

RFIO

I/O

−

Transceiver to/from RF modem

DVSS

−

Ground Pin for Digital circuit

SDI/PTC0

I/O

√

Data in of SPI

Pin 0 of Port C

SDO/PTC1

I/O

√

Data out of SPI

Pin 1 of Port C

SCK/PTC2

I/O

√

Clock of SPI

Pin 2 of Port C

EINT0/ PTC3

I/O

−

√

External interrupt Pin 0

Pin 3 of Port C

EINT1/ PTC4

I/O

−

√

External interrupt Pin 1

Pin 4 of Port C

PWM1/PTC5

I/O

−

√

Pin 5 of Port C.

PWM1 output

PLLC

−

External capacitor for PLL circuit

OSCO1

−

Output of crystal oscillator

OSCI

−

Input of crystal oscillator

AVSS

−

Ground Pin for Analog circuit

EM77950 Datasheet(PDF) 14 Page - ELAN Microelectronics Corp

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