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IS25LP032D-RKLE:P bảng dữ liệu(PDF) 69 Page - Integrated Silicon Solution, Inc |
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IS25LP032D-RKLE:P bảng dữ liệu(HTML) 69 Page - Integrated Silicon Solution, Inc |
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69 / 118 page ![]() IS25LP032D IS25WP032D Integrated Silicon Solution, Inc.- www.issi.com 69 Rev. A12 08/04/2020 8.25 SET EXTENDED READ PARAMETERS OPERATION (SERPNV: 85h, SERPV: 83h) Set Read Operational Driver Strength This device supports configurable Operational Driver Strength in both SPI and QPI modes by setting three bits (ODS0, ODS1, ODS2) within the Extended Read Register. To set the ODS bits the SERPNV and SERPV operation instructions are required. The device’s driver strength can be reduced as low as 12.50% of full drive strength. Details regarding the driver strength can be found in Table 6.14. SERPNV is used to set the non-volatile Extended Read register, while SERPV is used to set the volatile Extended Read register. Notes: 1. The default driver strength is set to 50%. 2. When SERPNV is executed, the volatile Read Extended Register is set as well as the non-volatile Read Extended Register. Figure 8.42 Set Extended Read Parameters Sequence In SPI Mode Instruction = 85h/83h CE # SCK SI SO Data In 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Mode 3 Mode 0 7 3 2 1 0 6 5 4 High Impedence Figure 8.43 Set Extended Read Parameters Sequence In QPI Mode 85h/83h 0 1 Mode 3 Mode 0 2 3 7:4 3:0 CE# SCK IO[3:0] Data In |
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