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MPR083EJ Datasheet(PDF) 11 Page - Freescale Semiconductor, Inc |
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MPR083EJ Datasheet(HTML) 11 Page - Freescale Semiconductor, Inc |
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11 / 35 page  MPR083 Sensors Freescale Semiconductor 11 Preliminary 3.5 Touch Acquisition Sample Period Register The Touch Acquisition Sample Period Register is used to determine the electrode scan period of the system. The I2C slave address of the Touch Acquisition Sample Period Register is 0x06. Figure 15. Touch Acquisition Sample Period Register Table 5. Rotary Configuration Register Field Descriptions Field Description 7 RSE Rotary Sounder Enable – The Rotary Sounder Enable bit controls if data is sent to the sounder. 0 Disable – Click Feedback Off 1 Enable – Click Feedback On 4 ACE Auto Calibration Enable – The Auto Calibration Enable bit enables or disables the auto calibration function. 0 Disable 1 Enable 3 RRBE Rotary Release Buffer Enable – The Rotary Release Buffer Enable bit determines whether or not data is logged in the FIFO when the rotary transitions from a touched to untouched state. 0 Disable – No Release Data Logged 1 Enable – Release Data Logged 2 RTBE Rotary Touch Buffer Enable – The Rotary Touch Buffer Enable bit determines whether or not data is logged in the FIFO any time a button is pressed. 0 Disable – Touches are not logged 1 Enable – Touches are logged 0 RE Rotary Enable – The Rotary Enable bit enables or disables the touch sensor. When disabled, no touches are detected. 0 Disable – Touches not detected 1 Enable – Touches detected 7 6 543210 R TASP W Reset: 0 0 000001 = Unimplemented Table 6. Touch Acquisition Sample Register Field Description Field Description 7:0 TASP Touch Acquisition Sample Period – The Touch Acquisition Sample Period Field selects or reports the multiplication factor that is used to determine how often electrodes are scanned. The resulting factor must be in the range 1 to 32. If the value is outside of this range the TASP will be set to 00011111. 00000000 Encoding 0 – Sets the TASP multiplication factor to 1 ~ 00011111 Encoding 31 – Sets the TASP multiplication factor to 32. |
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