W28F641B Datasheet, PDF (14/31 Pages) Winbond – 64MBIT (4MBIT × 16) PAGE MODE DUAL WORK FLASH MEMORY

W28F641B/T
Table 11. Extended Status Register Definition
R
R
R
R
15
14
13
12
SMS
R
R
R
7
6
5
4
XSR.15 − 8 = RESERVED FOR FUTURE
ENHANCEMENTS (R)
XSR.7 = STATE MACHINE STATUS (SMS)
1 = Page Buffer Program available
0 = Page Buffer Program not available
XSR.6-0 = RESERVED FOR FUTURE
ENHANCEMENTS (R)
R
R
R
R
11
10
9
8
R
R
R
R
3
2
1
0
NOTES:
After issue a Page Buffer Program command (E8H), XSR.7
= "1" indicates that the entered command is accepted. If
XSR.7 is "0", the command is not accepted and a next
Page Buffer Program command (E8H) should be issued
again to check if page buffer is available or not.
XSR.15 − 8 and XSR.6 − 0 are reserved for future use and
should be masked out when polling the extended status
register.
- 14 -