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MX29LV320MH Datasheet(PDF) 37 Page - Macronix International |
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MX29LV320MH Datasheet(HTML) 37 Page - Macronix International |
37 / 66 page 37 P/N:PM1136 REV. 1.1, AUG. 11, 2005 MX29LV320M H/L Figure 7. WRITE BUFFER PROGRAMMING ALGORITHM FLOWCHART Notes: 1. When Sector Address is specified, any address in the selected sector is acceptable. However, when loading Write-Buffer address locations with data, all addresses must fall within the selected Write-Buffer Page. 2. Q7 may change simultaneously with Q5. Therefore, Q7 should be verified. 3. If this flowchart location was reached because Q5= "1" then the device FAILED. If this flowchart location was reached because Q1="1", then the Write to Buffer operation was ABORTED. In either case, the proper reset command must be written before the device can begin another operation. If Q1=1, write the Write-Buffer-Programming-Abort-Reset com- mand. If Q5=1, write the Reset command. 4. See Table 3 for command sequences required for write buffer programming. Write "Write to Buffer" command and Sector Address Write number of addresses to program minus 1(WC) and Sector Address Part of "Write to Buffer" Command Sequence Write program buffer to flash sector address Read Q7~Q0 at Last Loaded Address Read Q7~Q0 with address = Last Loaded Address FAIL or ABORT PASS Write first address/data Write next address/data pair Write to a different sector address Write to buffer ABORTED. Must write "Write-to-buffer Abort Reset" command sequence to return to read mode. WC = WC - 1 WC = 0 ? Abort Write to Buffer Operation ? Q7 = Data ? Q5 = 1 ? Q1 = 1 ? Q7 and Q15 = Data ? Yes Yes Yes Yes Yes Yes (Note 2) (Note 1) (Note 3) No No No No No No |
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