EM77950 datasheet(15/102 Pages) EMC

15 / 102 page

EM77950

BB Controller

Product Specification (V1.0) 10.09.2007

• 7

(This specification is subject to change without further notice)

Pin #

Symbol

Type

Schmitt

Trigger

Pull High

/50K

Open

Drain

Function Description

35~42

PTD0~7,

ADC0~7

I/O

−

√

−

Pins 0~7 of Port D

Inputs 0~7 of ADC

VREF

−

Reference voltage for ADC

44~51

PTE0~7,

ADC8~F

I/O

−

√

−

Pins 0~7 of Port E

Inputs 8~F of ADC

AVDD

−

Power supply for analog circuit. The power

source value should be within the range of the

operating voltage.

The Table below shows the corresponding relationship between the pad and pins of EM77950B

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

12~15 PB0 ~ PB3

I/O

−

√

Pins 0~3 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

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