User's Manual

BT900-Sx Hardware Integration Guide
Intelligent BTv4.0 Dual Mode Module
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10 CONN-HIG-BT900
3.2 Pin Definitions
Table 2: Pin definitions
Pin
#
Pin Designation
Default
Function
Alternate
Function
Default
Direction
Supply
Domain
Pull-up
or pull
down
Notes Comment
1 UART_CTS UART SIO_3 IN VCC TBD
2 SIO_4 DIO ? IN
VCC TBD
1,2,3,4,5
Laird Devkit :
UART_DTR via
CON12
3 nAutoRUN IN
VCC
In ONLY
Laird Devkit:
UART_DSR via
CON12???
4 SIO_5 DIO ? IN
VCC TBD
1,2,3,4,5
Laird Devkit :
UART_DCD via
CON12
5 VCC 1.75V-3.3V
6 GND
7 SIO_6 DIO SPI MISO IN VCC TBD 1,2,3,4,5 SPIOPEN() in
smartBASIC
selects SPI
function, MOSI
and CLK will be
outputs when in
SPI master mode.
See Note 11?.
8 SIO_7 DIO SPI MOSI IN
VCC TBD
1,2,4,5,6
9 SIO_8 DIO IN
VCC TBD
1,2, 12
Laird Devkit :
UART_RI via
CON12
10 SIO_9 DIO SPI CLK IN VCC TBD 1,2,4,5,6
11 SIO_10 DIO I2C SDA IN VCC TBD 1,2,4,5,6
I2COPEN() in
smartBASIC
selects I2C
function
12 SIO_11 DIO I2C SCL IN
VCC TBD
1,2,4,5,6
13 GND
14 SIO_12 DIO IN
VCC TBD
1,2,4,5,6
Laird Devkit :
Buzzer output
15 SIO_13 DIO IN
VCC TBD
1,2,4,5,6
Laird Devkit :
Button1 input
16 nRESET IN
VCC TBD
9,10
System Reset
(Active low)
17 SIO_14 DIO SWDIO IN VCC TBD
18 SIO_15 DIO IN VCC TBD 1,2
19 SIO_16 DIO SWCLK IN VCC TBD 1,2
20 SIO_17 DIO IN VCC TBD 1,2
Laird Devkit : LED1
21 SIO_18 DIO IN VCC TBD 1,2
Laird Devkit : LED2
22 SIO_19 DIO IN VCC TBD