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NRF52811-QCAA-R bảng dữ liệu(PDF) 302 Page - Nordic Semiconductor |
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NRF52811-QCAA-R bảng dữ liệu(HTML) 302 Page - Nordic Semiconductor |
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302 / 444 page ![]() Peripherals 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 A A A A A A 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 RW ORC Over-read character. Character clocked out in case and over- read of the TXD buffer. 6.19.6 Electrical specification 6.19.6.1 SPIM master interface electrical specifications Symbol Description Min. Typ. Max. Units fSPIM Bit rates for SPIM24 825 Mbps tSPIM,START Time from START task to transmission started .. .. .. µs 6.19.6.2 Serial Peripheral Interface Master (SPIM) timing specifications Symbol Description Min. Typ. Max. Units tSPIM,CSCK SCK period .. .. .. ns tSPIM,RSCK,LD SCK rise time, standard drivea tRF,25pF tSPIM,RSCK,HD SCK rise time, high drivea tHRF,25pF tSPIM,FSCK,LD SCK fall time, standard drivea tRF,25pF tSPIM,FSCK,HD SCK fall time, high drivea tHRF,25pF tSPIM,WHSCK SCK high timea (0.5*tCSCK) – tRSCK tSPIM,WLSCK SCK low timea (0.5*tCSCK) – tFSCK tSPIM,SUMI MISO to CLK edge setup time 19 ns tSPIM,HMI CLK edge to MISO hold time 18 ns tSPIM,VMO CLK edge to MOSI valid 59 ns tSPIM,HMO MOSI hold time after CLK edge 20 ns 24 High bit rates may require GPIOs to be set as High Drive, see GPIO chapter for more details. 25 The actual maximum data rate depends on the slave's CLK to MISO and MOSI setup and hold timings. a At 25pF load, including GPIO pin capacitance, see GPIO spec. 4454_140 v1.0 302 |
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