MAX11800_1010 Datasheet, PDF (29/59 Pages) Maxim Integrated Products – Low-Power, Ultra-Small Resistive Touch-Screen Controllers with I2C/SPI Interface

Low-Power, Ultra-Small Resistive Touch-Screen
Controllers with I²C/SPI Interface
PANEL SETUP COMMANDS (DIRECT CONVERSION ONLY)
PANEL SETUP (PSU) FOR X, Y, OR Z DRIVE
SETTING IS MAINTAINED UNTIL NEXT COMMAND (CONT = 1).
MEASUREMENT COMMANDS (DIRECT CONVERSION ONLY)
SINGLE CONVERSION WITH CONT = 1
SETUP
ADC
ADC
(t_PSU + t_{D_CV}) ACQUISITION CONVERSION ^PSU
AVERAGED CONVERSION WITH CONT = 1
SETUP
(t_PSU + t_{D_CV})
ADC
ACQUISITION_i
ADC
CONVERSION_i
PSU
N_AVG
DATA IS LOGGED.
SETTING IS MAINTAINED UNTIL NEXT COMMAND (CONT = 1).
AVERAGED DATA IS LOGGED.
SETTING IS MAINTAINED UNTIL NEXT COMMAND (CONT = 1).
SINGLE CONVERSION WITH CONT = 0
SETUP
ADC
ACQ
ADC
PUR
CONV (OPTIONAL)
PUF
AVERAGED CONVERSION WITH CONT = 0
SETUP
ADC
ACQ_i
ADC
PUR
CONV_i (OPTIONAL)
PUF
N_AVG
DATA IS TAGGED AND LOGGED.
THE MAX11800–MAX11803 RETURN TO LPM OR TDM, ACCORDING TO IRQ MODE.
AVERAGED DATA IS TAGGED AND LOGGED.
THE MAX11800–MAX11803 RETURN TO LPM OR TDM, ACCORDING TO IRQ MODE.
Figure 12. Panel Setup and Measurement Commands—MAX11800–MAX11803
combined command which includes an auxiliary mea-
surement. Register 0x0A specifies the configuration for
auxiliary measurements.
In CINT, the MAX11800–MAX11803 continue to monitor
for the touch status of the panel. The devices report any
change in touch status in real time during an auxiliary
measurement procedure.
When performing auxiliary measurements in edge
interrupt mode, the MAX11800–MAX11803 temporarily
suspend the panel touch monitoring. The devices noti-
fy the AP after the completion of the auxiliary measure-
ment when a new touch occurs during the auxiliary
measurement.
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