
2 MEG x 16
1.8V ENHANCED+ BOOT BLOCK FLASH MEMORY
PRELIMINARY
2 Meg x 16, 1.8V Enhanced+ Boot Block Flash Memory
MT28F320A18_3.fm - Rev. 3, Pub. 9/2002
2002, Micron Technology Inc.
13
Table 6:
Command State Machine Current/Next States
CURRENT STATE
SR7
COMMAND INPUT AND NEXT STATE
DATA
WHEN
READ
READ ARRAY
READ CONFIG.
READ STATUS
REG.
CLEAR STATUS
REG.
READ QUERY
ERASE SETUP
FF
90
70
50
98
20
Read Array
1
Array
Read Array
Read
Configuration
Read
Configuration
Read
Configuration
Read
Configuration
Read
Configuration
Read Status
Clear Status
Read Query
Erase Setup
Read Status
1
Status
Read Array
Read Status
Clear Status
Read Query
Erase Setup
Read Configuration
1
Config.
Read Array
Read Status
Clear Status
Read Query
Erase Setup
Read Query
1
CFI
Read Array
Read Status
Clear Status
Read Query
Erase Setup
Clear Status
0
Status
Read Array
Read Status
Clear Status
Read Query
Erase Setup
Program Setup
Program (not done)
Program (done)
1
0
1
Status
Status
Status
Program
Program
Read Array
Read
Configuration
Program
Suspend Read
Configuration
Program
Suspend Read
Configuration
Program
Suspend Read
Configuration
Program
Suspend Read
Configuration
Read Status
Clear Status
Read Query
Erase Setup
Program Suspend Read
Array
1
Array
Program
Suspend Read
Array
Program
Suspend Read
Array
Program
Suspend Read
Array
Program
Suspend Read
Array
Program
Suspend Read
Status
Program
Suspend Read
Status
Program
Suspend Read
Status
Program
Suspend Read
Status
Erase Command Error
Program
Suspend Clear
Status
Program
Suspend Clear
Status
Program
Suspend Clear
Status
Program
Suspend Clear
Status
Program
Suspend Read
Query
Program
Suspend Read
Query
Program
Suspend Read
Query
Program
Suspend Read
Query
Program
Suspend Read
Array
Program
Suspend Read
Array
Program
Suspend Read
Array
Program
Suspend Read
Array
Program Suspend Read
Status
1
Status
Program Suspend Read
Configuration
1
Config.
Program Suspend Read
Query
1
CFI
Erase Setup
Erase (Not Done)
Erase (Done)
1
0
1
Status
Status
Status
Erase
Read Array
Read
Configuration
Read
Configuration
Read Status
Clear Status
Read Query
Erase Setup
Erase Command Error
1
Status
Read Array
Read Status
Clear Status
Read Query
Erase Setup
Program Setup in Erase
Suspend
Erase Suspend Program
(Not Done)
Erase Suspend (Done)
1
Status
Program in Erase Suspend
1
Status
Program in Erase Suspend
1
Status
Erase Suspend
Read Array
Erase Suspend
Read
Configuration
Erase Suspend
Read
Configuration
Erase Suspend
Read
Configuration
Erase Suspend
Read
Configuration
Erase Suspend
Read
Configuration
Erase Suspend
Read Status
Erase Suspend
Clear Status
Erase Suspend
Read Query
Erase Suspend
Read Array
Erase Suspend Read Array
1
Array
Erase Suspend
Read Array
Erase Suspend
Read Status
Erase Suspend
Clear Status
Erase Suspend
Read Query
Erase Suspend
Read Array
Erase Suspend Read
Status
1
Status
Erase Suspend
Read Array
Erase Suspend
Read Status
Erase Suspend
Clear Status
Erase Suspend
Read Query
Erase Suspend
Read Array
Erase Suspend Read
Configuration
1
Config.
Erase Suspend
Read Array
Erase Suspend
Read Status
Erase Suspend
Clear Status
Erase Suspend
Read Query
Erase Suspend
Read Array
Erase Suspend Read
Query
1
CFI
Erase Suspend
Read Array
Erase Suspend
Read Status
Erase Suspend
Clear Status
Erase Suspend
Read Query
Erase Suspend
Read Array
Erase Suspend Lock Setup
Erase Suspend Lock
1
1
Status
Status
Erase Suspend Lock Error
Erase Suspend
Read Status
Erase Suspend
Read Array
Erase Suspend
Read
Configuration
Erase Suspend
Read
Configuration
Erase Suspend
Clear Status
Erase Suspend
Read Query
Erase Suspend
Read Array
Erase Suspend Lock Down
1
Status
Erase Suspend
Read Array
Erase Suspend
Read Status
Erase Suspend
Clear Status
Erase Suspend
Read Query
Erase Suspend
Read Array