BT 900 User Manual download pdf (Page 15)

BT900 Development Kit

Version 1.0

Embedded Wireless Solutions Support Center:

http://ews-support.lairdtech.com

www.lairdtech.com/wireless

15

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JP2

Pin

Pin

Designation

Default

Function

1

Alternate

Function

Default

Direction

2

Comment

1

RTC_ALARM

Signal output from I2C device

2

SIO_13

DIO

PWM or

FREQ

Input

Input for BUTTON1 (SW1) on DVK via

CON7 (fit 2-pin jumper on CON7).

3

SIO_20

DIO

AIN or

WKUP1 or

Ext Interrupt

Input

Input for BUTTON2 (SW3) on DVK via

CON8 (fit 2-pin jumper on CON8).

Connects to Analogue device (Trim Pot)

on DVK, via CON14.

4

VCC_IO

Output only

Do not inject DC voltage into this pin.

5

SIO_4

DIO

Input

UART_DTR (via CON12) on DVK

6

UART_CTS

UART

SIO_3 or

WKUP4 or

Ext Interrupt

Input

7

SIO_5

DIO

Ext Interrupt

Input

UART_DCD (via CON12) on DVK

8

nAutoRUN

DIO

Input only

UART_DSR (via CON12) on DVK

9

GND

10

SIO_21

DIO

AIN

Input

Connects to Analogue device (Temp

Sensor) on DVK, via CON14.

1

DIO: Digital Input or Output

2

Default Direction In BT900 module smart

BASIC runtime engine FW

6.1.2 JP3

JP3 pin

Pin

Designation

Default

Function

1

Alternate

Function

Default

Direction

2

Comment

1

SIO_6

DIO

SPI_MISO

Input

Connects to SPI device (RTC chip) on DVK, via

CON16.

2

VCC_IO

Output

only

Do not inject DC voltage into this pin.

3

SIO_8

DIO

Input

UART_RI (via CON12) on DVK.

SPI_CS output connects to SPI device (Eeprom

chip) on DVK, via CON16.

4

SIO_7

DIO

SPI_MOSI

Input

SPI_MOSI is an output in SPI master mode.

Connects to SPI device (Eeprom chip) on DVK,

via CON16.

5

SIO_10

DIO

I2C_SDA

Input

Connects to I2C device on DVK, via CON15.

6

SIO_9

DIO

SPI_CLK

Input

SPI_CLK is an output in SPI master mode.

Connects to SPI device (Eeprom chip) on DVK,

via CON16.

7

SIO_12

DIO

PWM or FREQ

Input

Connects to BUZZER output on DVK, via

CON15.

8

SIO_11

DIO

I2C_SCL

Input

Connects to I2C device (RTC chip) on DVK,

via CON15.

9

GND

10

SIO_13

DIO

PWM or FREQ

Input

Input for BUTTON1 (SW1) on DVK via CON7

(fit 2-pin jumper on CON7).

1

DIO: Digital Input or Output

2

Default Direction In BT900 module smart

BASIC runtime engine FW

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