User's Manual

(SUNGKO
K
-DONG) 213, MANHAE-RO, DANWON-GU, ANSAN-CITY, KYUNGKI-DO, KOREA
2.3 Pin Definitions
No Pin Name I/O Description
1
VDD
I
Positive Input for the internal regulator (3.0 ~ 3.6V)
2
RESET
I
Reset if low. Input debounced so must be low for
>5ms to
cause a reset
3 RTS O
UART Request to Send. Active-low request.
4 CTS I
Bluetooth UART Clear to Send.Active-low clear.
5 TXD O
Bluetooth UART Serial Output.
6 GND -
Ground.
7 RXD I
Bluetooth UART Serial Input.
8 GND -
Ground.
9 SXL O
I2C interface Clock
10 SDA I/O
I2C interface DATA