GS-BT2416C1

Pin settings

7/11

26

INT1

I

External Interrupt signal

Internally connected to VSS1 with 10K

Ω /

If not used connect to VSS1

27

PCM_SYNC

I/O

PCM 8kHz synch

28

PCM_CLK

I/O

PCM clock

29

PCM_A

I/O

PCM Data In/Out

30

PCM_B

I/O

PCM Data In//Out

31

USB_DN

I/O

USB data -

If not used connect to VSS1

32

USB_DP

I/O

USB data +

If not used connect to VSS1

33

UART2_RXD

I

UART2 data input

If not used connect to VDD

34

UART2_TXD

O

UART2 data output

35

UART2_I1

O/I

UART2 clear to send input

If not used connect to VDD

36

UART2_02

O

UART1 ready to send output

37

SPI_FRM

I/O

Syncronous Serial Interface frame synch

38

SPI_CLK

I/O

Syncronous Serial Interface clock

39

SPI_TXD

O/T Syncronous Serial Interface transmit data

40

SPI_RXD

I

Syncronous Serial Interface receive data

If not used connect to VSS1

41

1V8

O

1.8V digital supply out ( test purpose)

To be left Not Connected

42

3V3

O

3.3V I/O power supply out ( test purpose) To be left Not Connected

43

Vss1

-

GND ( test purpose)

To be left Not Connected

44

2V7

O

2.7 digital core supply out ( test purpose) To be left Not Connected

45

RESET

I

Reset pin ( active low)

46

BOOT

I

External downloading Enable ( active low)

Internally pul-upped to 1.8V by 10kohm

47

UART10_TXD

O

UART1 data output

48

UART11_RXD

I

UART1 data input

If not used connect to VDD

49

Vss2 ( RF GND)

--

RF GND

50

+ANTENNA

--

Antenna out

51

Vss2 (RF GND)

--

RF GND

Table 5.

Pin description (continued)

Pin N°

Name

I/O

Description