Datasheet

 2009-2012 Microchip Technology Inc. Preliminary DS41393B-page 25
AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER
6.0 UART COMMUNICATIONS
UART communication is fixed at 9600 baud rate, 8N1
format.
Sleep mode will cause the TX line to drop low, which
may appear as a 0x00 byte sent from the controller.
TABLE 6-1: UART HARDWARE INTERFACE
AR1011 Pin Description
M1 Connect M1 to V
DD to select UART communications
TX Transmit to host
RX Receive from host
SDO Connect SDO to V
SS