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PM0020 Datasheet(PDF) 84 Page - STMicroelectronics |
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PM0020 Datasheet(HTML) 84 Page - STMicroelectronics |
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84 / 87 page ![]() ISC logic description PM00020 84/87 needs time to complete and may take up to 50uS before JTAG is ready to accept the next command. 12.5.24 Abort handling Table 50. Abort handling summary Abort condition Aborted Instruction Abort handling Vcc Power Down All None((1)) – Test-Logic-Reset (TRST, LVD_RESET) – ISC_DISABLE Isc_Program, Isc_Program_Uc, Isc_Program_Security Isc_Erase Isc_Blank_Check 1) Abort condition is latched in Micro-osc domain. 2) An abort request is sent to the Micro. The Micro operates to switch off the pumps, to discharge the capacitances, and to clear its own status. When Micro finishes, it sends an acknowledgment to ISC 3) ISC resets the ISC_Algorithm and then the Flash_Interface and all the other blocks. Almost 50 us are required to complete the abort sequence. During this time no instruction should be issued. Isc_Read 1) Abort condition is latched in Micro-osc domain. 2) ISC resets the ISC_Algorithm and then the Flash_Interface and all the other blocks. All the abort sequence will finish within 1 us. In this time no instruction should be issued. 1. The Security and Lock bits have a protection in the double program cycle. |
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