1.8 Volt Intel
Wireless Flash Memory with 3 Volt I/O
78
Datasheet
NOTES:
1. The output state shows the type of data that appears at the outputs if the partition address is the same as the
command address.
A partition can be placed in Read Array, Read Status or Read ID/CFI, depending on the command issued.
Each partition stays in its last output state (Array, ID/CFI or Status) until a new command changes it. The next
WSM state does not depend on the partition's output state.
For example, if partition #1's output state is Read Array and partition #4's output state is Read Status, every
read from partition #4 (without issuing a new command) outputs the Status register.
Figure 36. Write State Machine — Next State Table (Sheet 2 of 2)
Chip
Next State after Command Input
Lock,
Unlock,
Lock-down,
CR setup
(5)
OTP
Setup
(5)
Lock
Block
Confirm
(9)
Lock-
Down
Block
Confirm
(9)
Write CR
Confirm
(9)
Enhanced
Fact Pgm
Exit (blk add
<> WA0)
Illegal
commands or
EFP data
(2)
(60H)
(C0H)
(01H)
(2FH)
(03H)
(XXXXH)
(other codes)
Ready
Lock/CR
Setup
OTP
Setup
Ready
Lock/CR Setup
Ready (Lock Error)
Ready
Ready
Ready
Ready (Lock Error)
Setup
OTP Busy
Busy
Ready
Setup
Program Busy
N/A
Busy
Program Busy
Ready
Suspend
Program Suspend
Setup
Ready (Error)
Busy
Erase Busy
Erase Busy
Ready
Suspend
Lock/CR
Setup in
Erase Susp
Erase Suspend
Setup
Program in Erase Suspend Busy
Busy
Program in Erase Suspend Busy
Erase
Suspend
Suspend
Program Suspend in Erase Suspend
Erase Suspend
(Lock Error)
Erase Susp Erase Susp Erase Susp
Erase Suspend (Lock Error)
Setup
Ready (Error)
EFP Busy
EFP Busy
(7)
Verify Busy
(7)
EFP Verify
EFP Busy
(7)
EFP Verify
(7)
EFP Verify
Ready
Ready
Output
Next State after Command Input
Status
Status
Array
Status
W
O
(
Program
Erase
Program in
Erase Suspend
Current Chip
State
(8)
OTP
Lock/CR Setup in Erase
Suspend
Enhanced
Factory
Program
Output does
not change
Output does
not change
WSM
Operation
Completes
N/A
N/A
N/A
N/A
Output does not change
Array
Status
Pgm Setup,
Erase Setup,
OTP Setup,
Pgm in Erase Susp Setup,
EFP Setup,
EFP Busy,
Verify Busy
Lock/CR Setup,
Lock/CR Setup in Erase Susp
OTP Busy
Ready,
Pgm Busy,
Pgm Suspend,
Erase Busy,
Erase Suspend,
Pgm In Erase Susp Busy,
Pgm Susp In Erase Susp