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PC312XDP512F0CFVR Datasheet(PDF) 1096 Page - Freescale Semiconductor, Inc |
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PC312XDP512F0CFVR Datasheet(HTML) 1096 Page - Freescale Semiconductor, Inc |
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1096 / 1348 page  Chapter 26 4 Kbyte EEPROM Module (S12XEETX4KV2) MC9S12XDP512 Data Sheet, Rev. 2.21 1098 Freescale Semiconductor Figure 26-21. Example Mass Erase Command Flow Write: EEPROM Address Write: ECMD register Mass Erase Command 0x41 Write: ESTAT register Clear CBEIF 0x80 1. 2. 3. Clear ACCERR/PVIOL 0x30 Write: ESTAT register yes no Access Error and Protection Violation and Dummy Data Read: ESTAT register NOTE: command write sequence aborted by writing 0x00 to ESTAT register. NOTE: command write sequence aborted by writing 0x00 to ESTAT register. Read: ESTAT register no START yes Check CBEIF Set? Address, Data, Command Buffer Empty Check ACCERR/ PVIOL Set? EXIT Write: ECLKDIV register Read: ECLKDIV register yes no Clock Register Written Check EDIVLD Set? NOTE: ECLKDIV needs to be set once after each reset. no Bit Polling for Command Completion Check yes CCIF Set? |
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