DD28F032SA Datasheet, PDF (17/49 Pages) Intel Corporation – 32-MBIT (2 MBIT X 16, 4 MBIT X 8) FlashFile MEMORY

E
DD28F032SA
5.6 Global Status Register
WSMS
OSS
DOS
DSS
QS
PBAS
PBS
PBSS
7
6
5
4
3
2
1
0
GSR.7 = WRITE STATE MACHINE STATUS
1 = Ready
0 = Busy
GSR.6 = OPERATION SUSPEND STATUS
1 = Operation Suspended
0 = Operation in Progress/Completed
NOTES:
[1] _{RY/BY# output or WSMS bit must be checked}
to determine completion of an operation (block
lock, erase suspend, any RY/BY# reconfig-
uration, Upload Status Bits, block erase or data
program) before the appropriate Status bit (OSS
or DOS) is checked for success.
GSR.5 = DEVICE OPERATION STATUS
1 = Operation Unsuccessful
0 = Operation Successful or Currently
Running
GSR.4 = DEVICE SLEEP STATUS
1 = Device in Sleep
0 = Device Not in Sleep
MATRIX = 5/4
0 0 = Operation Successful or Currently
Running
0 1 = Device in Sleep Mode or Pending
Sleep
1 0 = Operation Unsuccessful
1 1 = Operation Unsuccessful or Aborted
If operation currently running, then GSR.7 = 0.
If device pending sleep, then GSR.7 = 0.
Operation aborted: unsuccessful due to Abort
command.
GSR.3 = QUEUE STATUS
1 = Queue Full
0 = Queue Available
GSR.2 = PAGE BUFFER AVAILABLE STATUS
1 = One or Two Page Buffers Available
0 = No Page Buffer Available
Each 28F016SA device contains two Page
Buffers.
GSR.1 = PAGE BUFFER STATUS
1 = Selected Page Buffer Ready
0 = Selected Page Buffer Busy
GSR.0 = PAGE BUFFER SELECT STATUS
1 = Page Buffer 1 Selected
0 = Page Buffer 0 Selected
Selected Page Buffer is currently busy with WSM
operation
NOTE:
1. When multiple operations are queued, checking BSR.7 only provides indication of completion for that particular block.
GSR.7, or CSR.7, provides indication when all queued operations are completed.
17