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M29W640FT Datasheet(PDF) 59 Page - Numonyx B.V |
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M29W640FT Datasheet(HTML) 59 Page - Numonyx B.V |
59 / 71 page M29W640FT, M29W640FB Common Flash Interface (CFI) 59/71 Table 26. Device Geometry Definition(1) 1. For Bottom Boot devices, Erase Block Region 1 is located from address 000000h to 007FFFh and Erase Block Region 2 from address 008000h to 3FFFFFh. For Top Boot devices, Erase Block Region 1 is located from address 000000h to 3F7FFFh and Erase Block Region 2 from address 3F8000h to 3FFFFFh. Address Data Description Value x16 x8 27h 4Eh 0017h Device Size = 2n in number of bytes 8 MByte 28h 29h 50h 52h 0002h 0000h Flash Device Interface Code description x8, x16 Async. 2Ah 2Bh 54h 56h 0004h 0000h Maximum number of bytes in multi-byte program or page = 2n 16 Bytes 2Ch 58h 0002h Number of Erase Block Regions. It specifies the number of regions containing contiguous Erase Blocks of the same size. 2 2Dh 2Eh 5Ah 5Ch 0007h 0000h Region 1 Information Number of Erase Blocks of identical size = 0007h+1 8 2Fh 30h 5Eh 60h 0020h 0000h Region 1 Information Block size in Region 1 = 0020h * 256 byte 8Kbyte 31h 32h 62h 64h 007Eh 0000h Region 2 Information Number of Erase Blocks of identical size= 007Eh+1 127 33h 34h 66h 68h 0000h 0001h Region 2 Information Block size in Region 2 = 0100h * 256 byte 64Kbyte 35h 36h 37h 38h 6Ah 6Ch 6Eh 70h 0000h 0000h 0000h 0000h Region 3 Information Number of Erase Blocks of identical size=007Fh+1 Region 3 Information Block size in Region 3 = 0000h * 256 byte 0 0 39h 3Ah 3Bh 3Ch 72h 74h 76h 78h 0000h 0000h 0000h 0000h Region 4 Information Number of Erase Blocks of Identical size=007Fh+1 Region 4 Information Block size in Region 4 = 0000h * 256 byte 0 0 |
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