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AT42QT1111-AU Datasheet(PDF) 13 Page - ATMEL Corporation |
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AT42QT1111-AU Datasheet(HTML) 13 Page - ATMEL Corporation |
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13 / 50 page  13 AT42QT1111-MU / AT42QT1111-AU [DATASHEET] 9571C–AT42–05/2013 Figure 4-4. All Keys Report – CRC Enabled 4.1.5.1 Set Instructions Set Instructions are 2-byte transmissions by the host that are used to send settings to individual locations in the device memory map. At the first byte, the QT1111 returns 0x55 (Idle) to confirm that it will interpret the byte as a new command. At the second byte, the QT1111 returns the Set command it has just received. For example, to set the Positive Recalibration Delay to 1920 ms, address 5 in the memory map is set to 12 (0x0C). This is done with the Set command for address 5 (command code 0x95), as shown in Figure 4-5 on page 13. Figure 4-5. Positive Recalibration Delay Set Instruction – CRC Disabled Host (Sends on MOSI) Command: 0xC1 Null: 0x00 Key Status Report Byte 0 Null: 0x00 Key Status Report Byte 1 Null: 0x00 Report CRC: 0x?? Simultaneous Transmission Command CRC: 0x94 Response: 0x94 (Expected Command CRC) Response: 0x55 ( Idle” Fresh Command) “ – Device (Responds on MISO) Host (Sends on MOSI) Command: 0x95 “Set” Data: 0x0C Response: 0x95 (Command Just Received) Simultaneous Transmission Response: 0x55 ( Idle” Fresh Command) “ – Device (Responds on MISO) |
Similar Part No. - AT42QT1111-AU_14 |
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Similar Description - AT42QT1111-AU_14 |
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