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NRF52820-QDAA-R Datasheet(PDF) 312 Page - Nordic Semiconductor |
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NRF52820-QDAA-R Datasheet(HTML) 312 Page - Nordic Semiconductor |
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312 / 437 page  Peripherals Register Offset Description TASKS_STARTRX 0x000 Start TWI receive sequence TASKS_STARTTX 0x008 Start TWI transmit sequence TASKS_STOP 0x014 Stop TWI transaction. Must be issued while the TWI master is not suspended. TASKS_SUSPEND 0x01C Suspend TWI transaction TASKS_RESUME 0x020 Resume TWI transaction EVENTS_STOPPED 0x104 TWI stopped EVENTS_ERROR 0x124 TWI error EVENTS_SUSPENDED 0x148 SUSPEND task has been issued, TWI traffic is now suspended. EVENTS_RXSTARTED 0x14C Receive sequence started EVENTS_TXSTARTED 0x150 Transmit sequence started EVENTS_LASTRX 0x15C Byte boundary, starting to receive the last byte EVENTS_LASTTX 0x160 Byte boundary, starting to transmit the last byte SHORTS 0x200 Shortcuts between local events and tasks INTEN 0x300 Enable or disable interrupt INTENSET 0x304 Enable interrupt INTENCLR 0x308 Disable interrupt ERRORSRC 0x4C4 Error source ENABLE 0x500 Enable TWIM PSEL.SCL 0x508 Pin select for SCL signal PSEL.SDA 0x50C Pin select for SDA signal FREQUENCY 0x524 TWI frequency. Accuracy depends on the HFCLK source selected. RXD.PTR 0x534 Data pointer RXD.MAXCNT 0x538 Maximum number of bytes in receive buffer RXD.AMOUNT 0x53C Number of bytes transferred in the last transaction RXD.LIST 0x540 EasyDMA list type TXD.PTR 0x544 Data pointer TXD.MAXCNT 0x548 Maximum number of bytes in transmit buffer TXD.AMOUNT 0x54C Number of bytes transferred in the last transaction TXD.LIST 0x550 EasyDMA list type ADDRESS 0x588 Address used in the TWI transfer Table 96: Register overview 6.22.7.1 TASKS_STARTRX Address offset: 0x000 Start TWI receive sequence Bit number 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 ID A Reset 0x00000000 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ID Access Field Value ID Value Description A W TASKS_STARTRX Start TWI receive sequence Trigger 1 Trigger task 6.22.7.2 TASKS_STARTTX Address offset: 0x008 Start TWI transmit sequence 4463_156 v1.0 312 |
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