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AM6412...ALV 数据表(PDF) 155 Page - Texas Instruments |
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AM6412...ALV 数据表(HTML) 155 Page - Texas Instruments |
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155 / 244 page  B. FA5 parameter illustrates amount of time required to internally sample input data. It is expressed in number of GPMC functional clock cycles. From start of read cycle and after FA5 functional clock cycles, input data will be internally sampled by active functional clock edge. FA5 value must be stored inside AccessTime register bits field. C. GPMC_FCLK is an internal clock (GPMC functional clock) not provided externally. Figure 7-44. GPMC and NOR Flash — Asynchronous Read — Single Word GPMC_FCLK GPMC_CLK GPMC_CSn[i] GPMC_A[MSB:1] GPMC_BE0n_CLE GPMC_BE1n GPMC_ADCn_ALE GPMC_OEn_REn GPMC_AD[15:0] GPMC_WAIT[j] Address 0 Address 1 Valid Valid Valid Valid Data Upper FA9 FA10 FA3 FA9 FA3 FA13 FA13 FA1 FA1 FA4 FA4 FA12 FA12 FA10 FA0 FA0 FA16 FA0 FA0 FA10 FA10 FA5 FA5 GPMC_07 A. In GPMC_CSn[i], i is equal to 0, 1, 2 or 3. In GPMC_WAIT[j], j is equal to 0 or 1. B. FA5 parameter illustrates amount of time required to internally sample input data. It is expressed in number of GPMC functional clock cycles. From start of read cycle and after FA5 functional clock cycles, input data will be internally sampled by active functional clock edge. FA5 value must be stored inside AccessTime register bits field. C. GPMC_FCLK is an internal clock (GPMC functional clock) not provided externally. Figure 7-45. GPMC and NOR Flash — Asynchronous Read — 32–Bit www.ti.com AM6442, AM6441, AM6421, AM6412, AM6411 SPRSP56D – JANUARY 2021 – REVISED JULY 2022 Copyright © 2022 Texas Instruments Incorporated Submit Document Feedback 155 Product Folder Links: AM6442 AM6441 AM6421 AM6412 AM6411 |
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