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AM6421 bảng dữ liệu(PDF) 186 Page - Texas Instruments |
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AM6421 bảng dữ liệu(HTML) 186 Page - Texas Instruments |
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186 / 237 page  Table 7-80. CPTS Switching Characteristics (continued) see Figure 7-77 NO. PARAMETER DESCRIPTION MIN MAX UNIT T14 tw(SYNC_OUTH) Pulse duration, CPTS_TS_SYNC sourcing CPTS_SYNCn_OUT high -2+36P (1) ns T15 tw(SYNC_OUTL) Pulse duration, CPTS_TS_SYNC sourcing CPTS_SYNCn_OUT low -2+36P (1) ns T16 tw(SYNC_OUTH) Pulse duration, GENF sourcing CPTS_SYNCn_OUT high -2+5P (1) ns T17 tw(SYNC_OUTL) Pulse duration, GENF sourcing CPTS_SYNCn_OUT low -2+5P (1) ns (1) P = functional clock period in ns. CPTS_TS_COMP T6 T7 CPTS_TS_SYNC T8 T9 CPTS_SYNC_OUT T10 T11 Figure 7-77. CPTS Switching Characteristics For more information, see Navigator Subsystem (NAVSS) section in Data Movement Architecture (DMA) chapter in the device TRM. 7.10.5.14 OSPI For more details about features and additional description information on the device Octal Serial Peripheral Interface, see the corresponding sections within Section 6.3, Signal Descriptions and Section 8, Detailed Description. 7.10.5.14.1 OSPI With Data Training 7.10.5.14.1.1 OSPI Switching Characteristics – Data Training PARAMETER DESCRIPTION MODE MIN MAX UNIT tc(CLK) Cycle time, CLK DDR, 1.8V 6.02 ns DDR, 3.3V 7.52 ns tc(CLK) Cycle time, CLK SDR, 1.8V 5.00 ns SDR, 3.3V 7.52 ns 7.10.5.14.2 OSPI Without Data Training Note The I/O Timings provided in this section are only applicable when data training is not implemented. Additionally, the I/O Timings are valid only for some OSPI usage modes when the corresponding DLL Delays are configured as described in Table 7-81 found in this section. Section 7.10.5.14.2.1, Section 7.10.5.14.2.2, Figure 7-78, and Figure 7-79 present switching characteristics for OSPI DDR and SDR Mode. For more information, see Octal Serial Peripheral Interface (OSPI) section in Peripherals chapter in the device TRM. AM6442, AM6441, AM6421 AM6412, AM6411 SPRSP56 – JANUARY 2021 www.ti.com 186 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated Product Folder Links: AM6442 AM6441 AM6421 AM6412 AM6411 |
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