28F640W30 NUMONYX [Numonyx B.V], 28F640W30 Datasheet - Page 68

• Manufacturer Part Number: 28F640W30
• Description: Numonyx Wireless Flash Memory (W30)
• Manufacturer: NUMONYX [Numonyx B.V]

Datasheet
68
address used in the Erase Setup command. For example, if the Erase Confirm
command is given to partition B, then the selected block in partition B is erased, even if
the Erase Setup command was to partition A.
The 2-cycle erase sequence cannot be interrupted with a bus write operation. For
example, to execute properly, an Erase Setup command must be immediately followed
by the Erase Confirm command. If a different command is issued between the setup
and confirm commands, the following occurs:
To detect block erase completion, the CPU analyzes SR[7] of that partition.
(SR[5,3,1]) was flagged, the status register can be cleared by issuing the Clear Status Register
command before attempting the next operation. The partition remains in read-status
mode until another command is written to its CUI. Any CUI instruction can follow after
erasing completes. The CUI can be set to read-array mode to prevent inadvertent
status register reads.
• The partition is placed in read-status mode.
• The status register signals a command sequence error.
• All subsequent erase commands to that partition are ignored until the status
register is cleared.
Numonyx™ Wireless Flash Memory (W30)
Numonyx™ Wireless Flash Memory (W30)
Order Number: 290702-13
November 2007
If an error bit