s29gl01gs Meet Spansion Inc., s29gl01gs Datasheet - Page 35

• Manufacturer Part Number: s29gl01gs
• Manufacturer: Meet Spansion Inc.

March 21, 2011 S29GL_128S_01GS_00_02
5.3.6.6
5.3.6.7
5.3.6.8
5.3.6.9
PPB ASO
The system can access the PPB ASO by issuing the PPB entry command sequence during Read Mode. This
entry command does not use a sector address from the entry command. The PPB bit for a sector appears in
bit 0 of all word locations in the sector.
The PPB ASO allows the following activities:
 Read PPB protection status of a sector in bit 0 of any word in the sector.
 Program the PPB bit using a modified Word Programming command.
 Erase all PPB bits with the PPB erase command.
 ASO Exit using legacy Command Set Exit command for backward software compatibility.
 ASO Exit using the common exit command for all ASO - alternative for a consistent exit method.
PPB Lock ASO
The system can access the PPB Lock ASO by issuing the PPB Lock entry command sequence during Read
Mode. This entry command does not use a sector address from the entry command. The global PPB Lock bit
appears in bit 0 of all word locations in the device.
The PPB Lock ASO allows the following activities:
 Read PPB Lock protection status in bit 0 of any word in the device address space.
 Set the PPB Lock bit using a modified Word Programming command.
 ASO Exit using legacy Command Set Exit command for backward software compatibility.
 ASO Exit using the common exit command for all ASO - alternative for a consistent exit method.
DYB ASO
The system can access the DYB ASO by issuing the DYB entry command sequence during Read Mode. This
entry command does not use a sector address from the entry command. The DYB bit for a sector appears in
bit 0 of all word locations in the sector.
The DYB ASO allows the following activities:
 Read DYB protection status of a sector in bit 0 of any word in the sector.
 Set the DYB bit using a modified Word Programming command.
 Clear the DYB bit using a modified Word Programming command.
 ASO Exit using legacy Command Set Exit command for backward software compatibility.
 ASO Exit using the common exit command for all ASO - alternative for a consistent exit method.
Software (Command) Reset / ASO exit
Software reset is part of the command set (See
returns the EAC to standby state and must be used for the following conditions:
 Exit ID/CFI mode
 Clear timeout bit (DQ5) for data polling when timeout occurs
Software Reset does not affect EA mode. Reset commands are ignored once programming or erasure has
begun, until the operation is complete. Software Reset does not affect outputs; it serves primarily to return to
Read mode from an ASO mode or from a failed program or erase operation.
Software Reset may cause a return to Read mode from undefined states that might result from invalid
command sequences. However, a Hardware Reset may be required to return to normal operation from some
undefined states.
There is no software reset latency requirement. The reset command is executed during the t
D a t a
S h e e t
GL-S MirrorBit
( P r e l i m i n a r y )
Table 6.1, Command Definitions on page
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