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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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K32L2AX датащи(PDF) 75 Page - NXP Semiconductors |
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K32L2AX датащи(HTML) 75 Page - NXP Semiconductors |
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75 / 96 page  EMVSIMn_CLK EMVSIMn_IO 2 T0 RESPONSE 1 EMVSIMn_VCCEN Figure 19. Internal Reset Card Reset Sequence The following table defines the general timing requirements for the SIM interface. Table 44. Timing Specifications, Internal Reset Card Reset Sequence Ref Min Max Units 1 — 200 EMVSIMx_CLK clock cycles 2 400 40,000 EMVSIMx_CLK clock cycles 8.8.1.1.2 Smart Cards with Active Low Reset Following figure shows the reset sequence for Smart cards with active low reset. The reset sequence comprises the following steps:: • After power-up, the clock signal is enabled on EMVSIMn_CLK (time T0) • After 200 clock cycles, EMVSIMn_IO must be asserted. • EMVSIMn_RST must remain low for at least 40,000 clock cycles after T0 (no response is to be received on RX during those 40,000 clock cycles) • EMVSIMn_RST is asserted (at time T1) • EMVSIMn_RST must remain asserted for at least 40,000 clock cycles after T1, and a response must be received on EMVSIMn_IO between 400 and 40,000 clock cycles after T1. Peripheral operating requirements and behaviors K32 L2A Microcontroller with 512 KB Flash and 128 KB SRAM, Rev. 3, 02/2021 75 NXP Semiconductors |
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