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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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STMPE812A датащи(PDF) 36 Page - STMicroelectronics |
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STMPE812A датащи(HTML) 36 Page - STMicroelectronics |
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36 / 53 page  Touchscreen controller STMPE812A 36/53 Doc ID 18225 Rev 4 TSC_DET_CFG2 TSC detection configuration 2 register Address: 0x42 Type: R/W Reset: 0xB0 Description: Touchscreen controller detection configuration 2 register. 7654 3 2 1 0 Acq_Mode StatusRead OpMode Z-Divider[3:0] 1011 0 0 0 0 [7:6] Acq_Mode ‘00’ – Data acquisition timed by internal timer ‘01’ – Data acquisition triggered by a write to “ACQ” bit ‘10’ – Data acquisition using Host-Controlled Sampling Rate Control. (Default) ‘11’ – Reserved In mode ‘10’, device sample a complete data set every time host accesses the buffer. After completion of sampling, device enters hibernate mode, until data is accessed again. (Or PEN- UP causing interrupt to de-assert) [5] StatusRead ‘1’ inserts data valid (data available) status read in data port. (Default) Reading data port in this mode clears the ISR register (equivalent to accessing interrupt status register) ‘0’ – no data valid (data available) status access by data port [4] OpMode TSC operating mode ‘0’ for 12-bit X,12-bit Y,8-bit Z acquisition ‘1’ for 12-bit X, 12-bit Y only (Default) This field cannot be written on, when EN=1 [3:0] Z-Divider[3:0] Pen-Pressure is internally calculated as a 16-bit integer. As 16-bit resolution is typically not required for touchscreen operation, STMPE812A right-shifts the value internally by Z- Divider[3:0]. Z-value read through the TSC Data register is the lowest 8-bit of the shifted value. |
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