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MB84VA2100 Datasheet(PDF) 9 Page - Fujitsu Component Limited. |
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MB84VA2100 Datasheet(HTML) 9 Page - Fujitsu Component Limited. |
9 / 29 page 9 MB84VA2100-10/MB84VA2101-10 Address bits A11 to A20 = X = “H” or “L” for all address commands except for Program Address (PA) and Sector Address (SA). Bus operations are defined in Table 2. Both Read/Reset commands are functionally equivalent, resetting the device to the read mode. RA =Address of the memory location to be read. PA =Address of the memory location to be programmed. Addresses are latched on the falling edge of the write pulse. SA =Address of the sector to be erased. The combination of A20, A19, A18, A17, A16, A15, A14, and A13 will uniquely select any sector. RD =Data read from location RA during read operation. PD =Data to be programmed at location PA. SPA =Sector address to be protected. Set sector address (SA) and (A6, A1, A0) = (0, 1, 0). SD =Sector protection verify data. Output 01H at protected sector addresses and output 00H at unprotected sector addresses. Note:This command is valid while Fast Mode. Table 6 Flash Memory Command Definitions Command Sequence Bus Write Cycles Req’d First Bus Write Cycle Second Bus Write Cycle Third Bus Write Cycle Fourth Bus Read/Write Cycle Fifth Bus Write Cycle Sixth Bus Write Cycle Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data Addr. Data Read/Reset 1 XXXH F0H — ——— — — — ——— Read/Reset 3 555H AAH 2AAH 55H 555H F0H RA RD — — — — Autoselect 3 555H AAH 2AAH 55H 555H 90H — — — — — — Program 4 555H AAH 2AAH 55H 555H A0H PA PD — — — — Chip Erase 6 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H 555H 10H Sector Erase 6 555H AAH 2AAH 55H 555H 80H 555H AAH 2AAH 55H SA 30H Sector Erase Suspend Erase can be suspended during sector erase with Addr (“H” or “L”). Data (B0H) Sector Erase Resume Erase can be resumed after suspend with Addr (“H” or “L”). Data (30H) Set to Fast Mode 3 555H AAH 2AAH 55H 555H 20H — — — — — — Fast Program (Note) 2 XXXH A0H PA PD — — — — — — — — Reset from Fast Mode (Note) 2 XXXH 90H XXXH F0H — ————— — — Extended Sector Protect 4 XXXH 60H SPA 60H SPA 40H SPA SD — — — — |
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