RC28F256P33TF Numonyx, RC28F256P33TF Datasheet - Page 77

• Manufacturer Part Number: RC28F256P33TF
• Description: 256-mbit, 512-mbit 256m/256m
• Manufacturer: Numonyx

P33-65nm
Figure 38: Block Lock Operations Flowchart
Datasheet
77
User-Defined Routine
Error Handler
- Issue Block Lock Setup Command
- Address = block address
- Data = 0x60
- Issue Lock/Unlock Command
- Address = block address
- Data = 0x01 (Lock Block) -or-
Yes
Read Status Register
0xD0 (Unlock Block)
0x2F (Lock Down Block)
See Status Register
Command Cycle
Data Cycle
Flowchart
Errors ?
Start
-or-
No
- Issue Read Device ID Command
- Address = block base address + 0x2
- Data = 0x90
- Read Block Lock Status
Block Status
Unlocked
Locked
Locked Down
Command Cycle
Check Lock
Data Cycle
WP#
Status ?
Done
1
1
0
Yes
D1
0
0
1
Order Number:320003-05
D0
No
0
1
1
Nov 2008