User's Manual

BSM-700 Specification Page 5/31 2014/03/31
LTC Network Access Confidential
1.4 Block Diagram
1.5 Pin Configuration
No Definition Description Type
1 UART_RX UART data in
Bidirectional with strong
pull-up
2 UART_TX UART data output
Bidirectional with weak
pull-up
3 LED_0 LED driver[0] Open drain
4 AUO[1] Programmable input / output line
Analogue
programmable input /
output line
5 LED_2 LED driver[2] Open drain
6 PIO_6_I2C_SCK Programmable input / output line
Bidirectional with weak
pull-down
7 USB_D+
USB data plus with selectable internal
1.5kΩ pull-up resistor
Bidirectional
8 USB_D- USB data minus Bidirectional
9 PIO_2 Programmable input / output line
Bidirectional with weak
pull-down