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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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M68ICS08GR датащи(PDF) 159 Page - Freescale Semiconductor, Inc |
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M68ICS08GR датащи(HTML) 159 Page - Freescale Semiconductor, Inc |
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159 / 408 page  Flash Memory FLASH Control Register MC68HC908GR8 — Rev 4.0 Technical Data MOTOROLA Flash Memory 159 11.4 FLASH Control Register The FLASH control register (FLCR) controls FLASH program and erase operations. HVEN — High-Voltage Enable Bit This read/write bit enables the charge pump to drive high voltages for program and erase operations in the array. HVEN can only be set if either PGM = 1 or ERASE = 1 and the proper sequence for program or erase is followed. 1 = High voltage enabled to array and charge pump on 0 = High voltage disabled to array and charge pump off MASS — Mass Erase Control Bit Setting this read/write bit configures the 8K byte FLASH array for mass erase operation. 1 = MASS erase operation selected 0 = MASS erase operation unselected ERASE — Erase Control Bit This read/write bit configures the memory for erase operation. ERASE is interlocked with the PGM bit such that both bits cannot be equal to 1 or set to 1 at the same time. 1 = Erase operation selected 0 = Erase operation unselected Address: $FE08 Bit 7 654321 Bit 0 Read: 0000 HVEN MASS ERASE PGM Write: Reset: 00000000 Figure 11-1. FLASH Control Register (FLCR) Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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