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IS25LP02GJ-RHLA3 Fiches technique(PDF) 99 Page - Integrated Silicon Solution, Inc |
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IS25LP02GJ-RHLA3 Fiches technique(HTML) 99 Page - Integrated Silicon Solution, Inc |
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99 / 182 page ![]() IS25LP02GJ IS25WP02GJ Integrated Silicon Solution, Inc.- www.issi.com 99 Rev.A 10/02/2025 8.22 WRITE FUNCTION REGISTER OPERATION (WRFR, 42h) The Write Function Register (WRFR) instruction allows the user to disable dedicated RESET# pin or ball by setting Dedicated RESET# Disable bit to “1”. Also Information Row Lock bits (IRL3~IRL0) can be set to “1” individually by WRFR instruction in order to lock Information Row. Since Dedicated RESET# Disable bit and IRL bits are OTP, once they are set to “1”, they cannot be set back to “0” again Figure 8.52 Write Function Register Sequence In SPI Mode Instruction = 42h 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 8.53 Write Function Register QPI Sequence 42h 0 1 Mode 3 Mode 0 2 3 7:4 3:0 CE# SCK IO[3:0] Data In |
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