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PM0020 Datasheet(PDF) 74 Page - STMicroelectronics |
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PM0020 Datasheet(HTML) 74 Page - STMicroelectronics |
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74 / 87 page  ISC logic description PM00020 74/87 12.5.12 ISC_DISABLE Description: Exit ISC mode, going back to PSD mode Requirement: Part is in ISC mode, all modules are not busy Register: ISC_Default Shift-In: 8 bits don't care Shift-Out: 8 bits status Mode: ISC Security: Fully functional Upon RTI (step 3), security status is updated. The 50 us in step 3 is a delay enough delay to correctly handle possible aborts. Exit ISC mode while Busy status is till active aborts the current operation. Internal program/erase error is genterated in this case. ISC_DISABLE clears ISC error but not internal program/erase error. Table 37. ISC_DISABLE sequence Step Tap activity Comment 0 Run-Test/Idle Start 1 IR-Scan Load ISC_DISABLE 2 DR-Scan Shift out status 3 Run-Test/Idle Wait 50uS 4 Test-Logic-Reset TLR or load ISC_NOOP (or BYPASS) followed by RTI |
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