stmpe610 STMicroelectronics, stmpe610 Datasheet - Page 42

• Manufacturer Part Number: stmpe610
• Description: Advanced Touch Screen Controller With 6-bit Port Expander
• Manufacturer: STMicroelectronics

Touch screen controller programming sequence
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o)
p)
q)
r)
s)
value. With the Z value obtained from the register, the user simply needs to
multiply the Z value with the touch screen panel resistance to obtain the touch
resistance.
The TSC_DATA register allows facilitation of another reading format with minimum
I
mode in SPI). The data format is the same as TSC_DATA_XYZ, with the
exception that all the data fetched are from the same address.
Enable the EN bit of the TSC_CTRL register to start the touch detection and data
acquisition.
During the auto-hibernate mode, a touch detection can cause a wake-up to the
device only when the TSC is enabled and the touch detect status interrupt mask is
enabled.
In order to prevent confusion, it is recommended that the user not mix the data
fetching format (TSC_DATA_X, TSC_DATA_Y, TSC_DATA_Z, TSC_DATA_XYZ
and TSC_DATA) between one reading and the next.
It is also recommended that the user should perform a FIFO reset and TSC
disabling when the ADC or TSC setting are reconfigured.
2
C transaction overhead by using the non autoincrement mode (or equivalent
STMPE610