Numonyx™ Wireless Flash Memory (W18)
Appendix A Write State Machine States
This table shows the command state transitions based on incoming commands. Only
one partition can be actively programming or erasing at a time.
Figure 40: Write State Machine — Next State Table (Sheet 1 of 2)
C h ip
N e x t S ta te a ft e r C o m m a n d In p u t
C u r r e n t C h ip
S ta te
Ready
L o c k /C R S e tu p
OTP
S e tu p
B usy
S e tu p
P ro g r a m
B usy
S uspend
S e tu p
B usy
E ra s e
S uspend
S e tu p
P ro g r a m in
E ra s e S u s p e n d
B usy
S uspend
L o c k /C R S e tu p in E r a s e
S uspend
E nhanced
F a c to r y
P ro g r a m
S e tu p
EF P Busy
E F P V e rify
E ra s e
S uspend
P g m in
E ra s e
S u s p S e tu p
P r o g ra m B u s y
P r o g ra m S u s p e n d
R e a d y ( E rr o r )
E ra s e B u s y
E ra s e S u s p e n d
E ra s e B u s y
Pgm Busy
E ra s e B u s y
E ra s e S u s p
P r o g ra m B u s y
P gm S usp
P r o g ra m B u s y
P ro g r a m S u s p e n d
R e a d y (E r ro r)
E ra s e B u s y
E ra s e S u s p e n d
(8 )
R ead
A rr a y
(3 )
P r o g ra m
S e tu p
( 4 ,5 )
E ra s e
S e tu p
( 4 ,5 )
W r it e S t a t e M a c h i n e ( W S M ) N e x t S t a t e T a b l e
E nhanced
F a c to ry
Pgm
S e tu p
(4 )
B E C o n firm ,
P /E R e s u m e ,
ULB
C o n fir m
(D 0 H )
(9 )
P r o g ra m /
E ra s e
S uspend
(B 0 H )
Read
S ta tu s
C le a r
S ta tu s
R e g is te r
(5 0 H )
(6)
R ead
ID /Q u e r y
(F F H )
R eady
(1 0 H /4 0 H )
P r o g ra m
S e tu p
(2 0 H )
E ra s e
S e tu p
(3 0 H )
EFP
S e tu p
(7 0 H )
R eady
(9 0 H , 9 8 H )
R e a d y ( L o c k E r ro r)
Ready
O T P Busy
R e a d y (L o c k E rr o r )
P r o g ra m in E r a s e S u s p e n d B u s y
P r o g ra m i n E r a s e S u s p e n d B u s y
P r o g ra m S u s p e n d in E r a s e S u s p e n d
E r a s e S u s p e n d (L o c k E rr o r )
R e a d y ( E rr o r )
P g m in E r a s e
S usp B usy
E ra s e S u s p
E F P B usy
EF P Busy
(7 )
(7 )
P g m S u s p in
E ra s e S u s p
P ro g r a m in E ra s e S u s p e n d B u s y
P ro g r a m S u s p e n d in E ra s e S u s p e n d
E ra s e S u s p e n d
(L o c k E rro r)
R e a d y (E r ro r)
V e r ify B u s y
O u tp u t
N e x t S t a t e a f t e r C o m m a n d In p u t
O u t p u t N e x t S t a t e T a b le
P g m S e tu p ,
E ra s e S e tu p ,
O T P S e tu p ,
P g m in E ra s e S u s p S e tu p ,
E F P S e tu p ,
E FP B usy,
V e r ify B u s y
L o c k /C R S e tu p ,
L o c k /C R S e tu p in E r a s e S u s p
O T P Busy
Ready,
P gm B usy,
P gm S uspend,
E ra s e B u s y ,
E ra s e S u s p e n d ,
P g m In E ra s e S u s p B u s y ,
P g m S u s p In E r a s e S u s p
(1)
S ta tu s
S ta tu s
S ta tu s
A rr a y
(3 )
S ta tu s
O u tp u t d o e s n o t c h a n g e
S ta tu s
O u tp u t
does not
change
ID /Q u e r y
Datasheet
86
November 2007
Order Number: 290701-18
NUMONYX [ NUMONYX B.V ]
