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M58LT256JST Datasheet(PDF) 83 Page - STMicroelectronics |
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M58LT256JST Datasheet(HTML) 83 Page - STMicroelectronics |
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83 / 106 page  M58LT256JST, M58LT256JSB Common Flash Interface 83/106 1. The variable P is a pointer which is defined at CFI offset 015h. 2. Bank regions. There are two bank regions, see Tables 29 to 34. Table 42. Bank and Erase block region information M58LT256JST M58LT256JSB Description Offset Data Offset Data (P+23)h = 12Dh 02h (P+23)h = 12Dh 02h Number of bank regions within the device Table 43. Bank and Erase block region 1 information M58LT256JST M58LT256JSB Description Offset Data Offset Data (P+24)h = 12Eh 0Fh (P+24)h = 12Eh 01h Number of identical banks within bank region 1 (P+25)h = 12Fh 00h (P+25)h = 12Fh 00h (P+26)h = 130h 11h (P+26)h = 130h 11h Number of program or erase operations allowed in bank region 1: Bits 0-3: number of simultaneous program operations Bits 4-7: number of simultaneous erase operations (P+27)h = 131h 00h (P+27)h = 131h 00h Number of program or erase operations allowed in other banks while a bank in same region is programming Bits 0-3: number of simultaneous program operations Bits 4-7: number of simultaneous erase operations (P+28)h = 132h 00h (P+28)h = 132h 00h Number of program or erase operations allowed in other banks while a bank in this region is erasing Bits 0-3: number of simultaneous program operations Bits 4-7: number of simultaneous erase operations (P+29)h = 133h 01h (P+29)h = 133h 02h Types of erase block regions in bank region 1 n = number of erase block regions with contiguous same-size erase blocks. Symmetrically blocked banks have one blocking region(2). (P+2A)h = 134h 0Fh (P+2A)h = 134h 03h Bank Region 1 Erase Block Type 1 Information Bits 0-15: n+1 = number of identical-sized erase blocks Bits 16-31: n×256 = number of bytes in erase block region (P+2B)h = 135h 00h (P+2B)h = 135h 00h (P+2C)h = 136h 00h (P+2C)h = 136h 80h (P+2D)h = 137h 02h (P+2D)h = 137h 00h (P+2E)h = 138h 64h (P+2E)h = 138h 64h Bank region 1 (Erase Block Type 1) Minimum block erase cycles × 1000 (P+2F)h = 139h 00h (P+2F)h = 139h 00h |
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