S29GL01GS datasheet(45/104 Pages) SPANSION

45 / 104 page

March 16, 2012 S29GL_128S_01GS_00_06

GL-S MirrorBit® Family

Data

She e t

5.5.3

Write Buffer Abort

If an error occurs during a Write to Buffer command the device (EAC) remains busy. The RY/BY# output

remains Low, data polling status continues to be overlaid on all address locations, and the status register

shows ready with valid status bits. The device remains busy until the error status is detected by the host

system status monitoring and the error status is cleared.

During write to buffer abort (WBA) error status the Data Polling status will show the following:



DQ7 is the inversion of the DQ7 bit in the last word loaded into the write buffer



DQ6 continues to toggle, independent of the address used to read status



DQ5 = 0; to indicate no failure of the programming operation. WBA is an error in the values input by

the Write to Buffer command before the programming operation can begin



DQ4 is RFU and should be treated as don’t care (masked)



DQ3 = 1 to indicate embedded sector erase in progress



DQ2 does not toggle as no erase is in progress



DQ1 = 1: Write buffer abort error



DQ0 is RFU and should be treated as don’t care (masked)

During embedded algorithm error status the Status Register will show the following:



SR[7] = 1; Valid status displayed



SR[6] = X; May or may not be erase suspended during the WBA error status



SR[5] = 0; Erase successful



SR[4] = 1; Programming related error



SR[3] = 1; Write buffer abort



SR[2] = 0; No Program in suspension



SR[1] = 0; Sector not locked during operation



SR[0] = X; RFU, treat as don’t care (masked)

When the WBA error status is detected, it is necessary to clear the error status in order to return to normal

operation, with RY/BY# High, ready for a new read or command write. The error status can be cleared by

writing:



Write Buffer Abort Reset command

–

Clears the status register and returns to normal operation



Status Register Clear command

Commands that are accepted during embedded algorithm error status are:



Status Register Read

–

Reads the status register and returns to WBA busy state



Write Buffer Abort Reset command



Status Register Clear command

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