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MTCH6301-I/ML bảng dữ liệu(PDF) 13 Page - Microchip Technology |
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MTCH6301-I/ML bảng dữ liệu(HTML) 13 Page - Microchip Technology |
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13 / 32 page ![]() 2012 Microchip Technology Inc. DS41663A-page 13 MTCH6301 PROJECTED CAPACITIVE TOUCH CONTROLLER FIGURE 5-3: WRITE REGISTER COMMAND FIGURE 5-4: READ REGISTER COMMAND 5.6.2 MANUFACTURING TEST The manufacturing test ensures electrical functionality of the sensor. This test performs the following checks on all mapped sensor pins: short to VDD, Short to GND, and pin-to-pin short. If an I/O error is reported, bits for the pins in question will be set in the “TX Short Status” and “RX Short Sta- tus” registers. Please note that: 1. The RX7/RX8 pins will always report an error. 2. If the sensor has more than 16 TX channels, then channels 17 and 18 will never report an error. FIGURE 5-5: MANUFACTURING TEST 0x55 0x04 0x15 [D0] [D1] [D2] 0x55 0x02 0x00 0x15 Master Command Controller Response D0 = Index Location D1 = Offset Location D2 = Value to Write to Specified Register 0x55 0x03 0x16 [D0] [D1] 0x55 0x03 0x00 0x16 [D2] Master Command Controller Response D0 = Index Location D1 = Offset Location D2 = Read Value at Specified Register 0x55 0x01 0x1A 0x55 0x03 0x00 0x1A [D0] Master Command Controller Response D0 = Result; 0 = success, 1 = I/O error |
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