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NRF52811-QCAA-R bảng dữ liệu(PDF) 307 Page - Nordic Semiconductor |
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NRF52811-QCAA-R bảng dữ liệu(HTML) 307 Page - Nordic Semiconductor |
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307 / 444 page  Peripherals Only one peripheral can be assigned to drive a particular GPIO pin at a time. Failing to do so may result in unpredictable behavior. SPI signal SPI pin Direction Output value Comment CSN As specified in PSEL.CSN Input Not applicable SCK As specified in PSEL.SCK Input Not applicable MOSI As specified in PSEL.MOSI Input Not applicable MISO As specified in PSEL.MISO Input Not applicable Emulates that the SPI slave is not selected. Table 92: GPIO configuration before enabling peripheral 6.20.5 Registers Base address Peripheral Instance Description Configuration 0x40003000 SPIS SPIS1 SPI slave 1 0x40004000 SPIS SPIS0 SPI slave 0 Table 93: Instances Register Offset Description TASKS_ACQUIRE 0x024 Acquire SPI semaphore TASKS_RELEASE 0x028 Release SPI semaphore, enabling the SPI slave to acquire it EVENTS_END 0x104 Granted transaction completed EVENTS_ENDRX 0x110 End of RXD buffer reached EVENTS_ACQUIRED 0x128 Semaphore acquired SHORTS 0x200 Shortcuts between local events and tasks INTENSET 0x304 Enable interrupt INTENCLR 0x308 Disable interrupt SEMSTAT 0x400 Semaphore status register STATUS 0x440 Status from last transaction ENABLE 0x500 Enable SPI slave PSEL.SCK 0x508 Pin select for SCK PSEL.MISO 0x50C Pin select for MISO signal PSEL.MOSI 0x510 Pin select for MOSI signal PSEL.CSN 0x514 Pin select for CSN signal PSELSCK 0x508 Pin select for SCK Deprecated PSELMISO 0x50C Pin select for MISO Deprecated PSELMOSI 0x510 Pin select for MOSI Deprecated PSELCSN 0x514 Pin select for CSN Deprecated RXDPTR 0x534 RXD data pointer Deprecated MAXRX 0x538 Maximum number of bytes in receive buffer Deprecated AMOUNTRX 0x53C Number of bytes received in last granted transaction Deprecated RXD.PTR 0x534 RXD data pointer RXD.MAXCNT 0x538 Maximum number of bytes in receive buffer RXD.AMOUNT 0x53C Number of bytes received in last granted transaction RXD.LIST 0x540 EasyDMA list type TXDPTR 0x544 TXD data pointer Deprecated MAXTX 0x548 Maximum number of bytes in transmit buffer Deprecated AMOUNTTX 0x54C Number of bytes transmitted in last granted transaction Deprecated TXD.PTR 0x544 TXD data pointer TXD.MAXCNT 0x548 Maximum number of bytes in transmit buffer TXD.AMOUNT 0x54C Number of bytes transmitted in last granted transaction TXD.LIST 0x550 EasyDMA list type 4454_140 v1.0 307 |
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