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IS25LP256D-RGLA3 Datasheet(PDF) 23 Page - Integrated Silicon Solution, Inc |
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IS25LP256D-RGLA3 Datasheet(HTML) 23 Page - Integrated Silicon Solution, Inc |
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23 / 174 page  IS25LP256D IS25WP256D Integrated Silicon Solution, Inc.- www.issi.com 23 Rev A6 04/15/2019 6.3.2 EXTENDED READ REGISTER Table 6.12 and Table 6.13 define all bits that control features in SPI/QPI modes. The ODS2, ODS1, ODS0 (EB7, EB6, EB5) bits provide a method to set and control driver strength. The four bits (EB3, EB2, EB1, EB0) are read- only bits and may be checked to know what the WIP status is or whether there is an error during an Erase, Program, or Write/Set Register operation. These bits are not affected by SERPNV or SERPV commands. EB4 bit remains reserved for future use. The SET EXTENDED READ PARAMETERS Operations (SERPNV: 85h, SERPV: 83h) are used to set all the Extended Read Register bits, and can thereby define the output driver strength used during READ modes. SRPNV is used to set the non-volatile register and SRPV is used to set the volatile register. Table 6.12 Extended Read Register Bit Table EB7 EB6 EB5 EB4 EB3 EB2 EB1 EB0 ODS2 ODS1 ODS0 Reserved Reserved P_ERR PROT_E WIP Default 1 1 1 1 - 0 0 0 Table 6.13 Extended Read Register Bit Definition Bit Name Definition Read- /Write Type EB0 WIP Write In Progress Bit: Has exactly same function as the bit0 (WIP) of Status Register “0”: Ready, “1”: Busy R Volatile EB1 PROT_E Protection Error Bit: "0" indicates no error "1" indicates protection error in an Erase or a Program operation R Volatile EB2 P_ERR Program Error Bit: "0" indicates no error "1" indicates an Program operation failure or protection error R Volatile EB3 Reserved Reserved R Reserved EB4 Reserved Reserved R Reserved EB5 ODS0 Output Driver Strength: Output Drive Strength can be selected according to Table 6.14 R/W Non-Volatile and Volatile EB6 ODS1 R/W Non-Volatile and Volatile EB7 ODS2 R/W Non-Volatile and Volatile Table 6.14 Driver Strength Table ODS2 ODS1 ODS0 Description Remark 0 0 0 Reserved 0 0 1 12.50% 0 1 0 25% 0 1 1 37.50% 1 0 0 Reserved 1 0 1 75% 1 1 0 100% 1 1 1 50% Default |
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