MT28F320A18 Micron Technology, MT28F320A18 Datasheet - Page 24

• Manufacturer Part Number: MT28F320A18
• Description: FLASH MEMORY
• Manufacturer: Micron Technology

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DataSheet
Table 9:
Notes: 1. Other locations within the configuration address space are reserved by Micron for future use.
2 Meg x 16, 1.8V Enhanced+ Boot Block Flash Memory
MT28F320A18_F.fm – Rev F 08/03 EN
4
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WP#
0
0
0
1
1
1
1
0
2. “XX” specifies the block address of lock configuration.
Block Locking State Transition
DQ1
0
0
1
0
0
1
1
1
Table 10: Chip Configuration Addressing
ITEM
Manufacturer Code (x16)
Device Code
Top boot configuration
Bottom boot configuration
Block Lock Configuration
Block is unlocked
Block is locked
Block is locked down
Chip Protection Register
Lock
Chip Protection Register 1
Chip Protection Register 2
DQ0
0
1
1
0
1
0
1
0
1.8V ENHANCED+ BOOT BLOCK FLASH MEMORY
Lock down
Lock down
Lock down
Unlocked
Unlocked
(Default)
disabled
disabled
Locked
Locked
NAME
Invalid
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ADDRESS
000000h
000001h
BA + 000002h
80h
81h–84h
85h–88h
24
PROGRAM
ALLOWED
2
ERASE/
Yes
Yes
Yes
No
No
No
No
No
DATA
002Ch
32Mb
00C2h
00C3h
Lock
DQ0 = 0
DQ0 = 1
DQ1 = 1
PR-Lock
DQ1 = 0 locked
DQ1 = 1 unlocked
Factory Data
User Data
No Change
No Change
No Change
No Change
No Change
To [001]
To [101]
To [111]
LOCK
1
No Change
No Change
No Change
No Change
No Change
UNLOCK
To [000]
To [100]
To [110]
2 MEG x 16
©2003 Micron Technology Inc.
LOCK DOWN
No Change
No Change
No Change
To [011]
To [011]
To [111]
To [111]
To [111]