AR1010T-I/ML(2016) View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

AR1010T-I/ML
(Rev.:2016)

AR1000 Series Resistive Touch Screen Controller

Microchip Technology 

AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER

5.5 Command Protocol

The AR1021 controller receives commands from the

host as follows:

• The host clocks the bytes of a command to the

AR1021 controller.

• The AR1021 controller asserts the SIQ interrupt

pin high when it is ready with a response to the

command sent by the host.

• The host clocks out the bytes of the command

response from the AR1021 controller.

• The AR1021 controller clears the SIQ interrupt pin

low, after the first byte of the command response

has been clocked out by the host.

The communication protocol for the host sending the

ENABLE_TOUCH command to the AR1021 controller is

shown below in Figure 5-2.

FIGURE 5-2:

SPI TIMING DIAGRAM – COMMAND PROTOCOL (ENABLE_TOUCH)

5.6 SPI Bit Timing – General

General timing waveforms are shown below in

Figure 5-3.

FIGURE 5-3:

SPI GENERAL BIT TIMING WAVEFORM

DS40001393C-page 20

 2009-2016 Microchip Technology Inc.

Share Link: