stmpe812a STMicroelectronics, stmpe812a Datasheet - Page 9

• Manufacturer Part Number: stmpe812a
• Description: S-touch? Enhanced 4-wire Resistive Touchscreen Controller With Pwm And Dedicated Reset Pin
• Manufacturer: STMicroelectronics

STMPE812A
Table 5.
Mode
Read
Write
Operating modes
Byte
≥1
≥1
Start, Device address, R/W = 0, Register address to be read
Restart, Device address, R/W = 1, Data Read, Stop
If no Stop is issued, the Data Read can be continuously performed. If
the register address falls within the range that allows an address auto-
increment, then the register address auto-increments internally after
every byte of data being read. For register address that falls within a
non-incremental address range, the address is kept static throughout
the entire read operations. Refer to the memory map table for the
address ranges that are auto and non-increment.
Start, Device address, R/W = 0, Register address to be written, Data
Write, Stop
If no Stop is issued, the Data Write can be continuously performed. If
the register address falls within the range that allows address auto-
increment, then the register address auto-increments internally after
every byte of data being written in. For those register addresses that
fall within a non-incremental address range, the address is kept static
throughout the entire write operation. Refer to the memory map table
for the address ranges that are auto and non-increment.
Doc ID 18225 Rev 2
Programming sequence
I2C interface
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