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M29DW128F60NF1E Datasheet(PDF) 39 Page - Numonyx B.V |
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M29DW128F60NF1E Datasheet(HTML) 39 Page - Numonyx B.V |
39 / 94 page M29DW128F Command interface 39/94 6.2.10 Unlock Bypass Program command The Unlock Bypass Program command can be used to program one address in the memory array at a time. The command requires two Bus Write operations, the final write operation latches the address and data and starts the Program/Erase Controller. The Program operation using the Unlock Bypass Program command behaves identically to the Program operation using the Program command. The operation cannot be aborted, a Bus Read operation to the Bank where the command was issued outputs the Status Register. See the Program command for details on the behavior. 6.2.11 Unlock Bypass Reset command The Unlock Bypass Reset command can be used to return to Read/Reset mode from Unlock Bypass mode. Two Bus Write operations are required to issue the Unlock Bypass Reset command. Read/Reset command does not exit from Unlock Bypass mode. Table 13. Fast Program Commands, 8-bit mode(1) Command Bus Write operations 1st 2nd 3rd 4th 5th 6th 7th 8th 9th Add Data Add Data Add Data Add Data Add Data Add Data Add Data Add Data Add Data Write to Buffer and Program N + 5 AAA AA 555 55 BA 25 BA N(2) PA (3) PD WBL (4) PD Write to Buffer and Program Abort and Reset 3 AAA AA 555 55 AAA F0 Write to Buffer and Program Confirm 1 BA (5) 29 Double byte Program 3 AAA 50 PA0 PD0 PA1 PD1 Quadruple byte Program 5 AAA 56 PA0 PD0 PA1 PD1 PA2 PD2 PA3 PD3 Octuple byte Program 9 AAA 8B PA0 PD0 PA1 PD1 PA2 PD2 PA3 PD3 PA4 PD4 PA5 PD5 PA6 PD6 PA7 PD7 Unlock Bypass 3 AAA AA 555 55 AAA 20 Unlock Bypass Program 2 X A0 PA PD Unlock Bypass Reset 2X 90 X 00 1. X Don’t Care, PA Program Address, PD Program Data, BA Any address in the Block, BKA Bank Address, WBL Write Buffer Location. All values in the table are in hexadecimal. 2. The maximum number of cycles in the command sequence is 68. N+1 is the number of bytes to be programmed during the Write to Buffer and Program operation. 3. Each buffer has the same A5-A22 addresses. A0-A4 and A-1 are used to select a byte within the N+1 byte page. 4. The 6th cycle has to be issued N time. WBL scans the byte inside the page. 5. BA must be identical to the address loaded during the Write to buffer and Program 3rd and 4th cycles. |
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