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MB84VD22184FM-70 Datasheet(PDF) 20 Page - SPANSION |
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MB84VD22184FM-70 Datasheet(HTML) 20 Page - SPANSION |
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20 / 46 page  MB84VD22184FM/VD22194FM-70 20 (Continued) *1 : Both of these reset commands are equivalent. *2 : This command is valid during Fast Mode. *3 : This command is valid while RESET = VID. *4 : The valid address are A6 to A0. *5 : This command is valid during HiddenROM mode. *6 : The date “00h” is also acceptable. Notes: • Address bits A20 to A11 = X = “H” or “L” for all address commands except or Program Address (PA) , Sector Address (SA) , Bank Address (BA) . • Bus operations are defined in “User Bus Operations Tables” (sDEVICE BUS OPERATION). • 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, A13, and A12 will uniquely select any sector. BA = Bank Address (A20 to A18) • RD = Data read from location RA during read operation. PD = Data to be programmed at location PA. Data is latched on the rising edge of write pulse. • SPA = Sector group address to be protected. Set sector group address and (A6, A3, A2, A1, A0) = (0, 0, 0, 1, 0) . SD = Sector group protection verify data. Output 01h at protected sector group addresses and output 00h at unprotected sector group addresses. • HRA = Address of the HiddenROM area Top Boot Type : 1FF000h to 1FF07Fh Bottom Boot Type : 000000h to 00007Fh • HRBA = Bank Address of the HiddenROM area Top Boot Type : A20 = A19 = A18 = 1 Bottom Boot Type : A20 = A19 = A18 = 0 • The system should generate the following address patterns : Word Mode : 555h or 2AAh to addresses A10 to A0 • Both Read/Reset commands are functionally equivalent, resetting the device to the read mode. • The command combinations not described in “Command Definitions Table” are illegal. |
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