Device operations
NAND02G-B2D
Figure 15. Page copy back program with random data input
2 Cycle
Add Inputs
Target
Add Inputs
Source
Add Inputs
I/O
35h
SR0
00h
85h
Data 85h
Data 10h
70h
Read
Code
Copy Back
Code
Unlimited number of repetitions
tBLBH1
tBLBH2
(Read Busy time)
(Program Busy time)
RB
Busy
Busy
ai11001
6.6
Multiplane copy back program
In addition to multiplane page program, the NAND02G-B2D device supports multiplane
copy back program.
A Multiplane Copy Back Program command requires exactly the same steps as a multiplane
page program and must satisfy the same time constraints (see Section 6.4: Multiplane page
program).
Prior to executing the multiplane copy back program, two single page read operations must
be executed to copy back the first page from the first plane and the second page from the
second plane.
Two different sequences are allowed for the multiplane copy back operation:
1. A traditional one (85h command, address insertion for the first plane, 11h command,
81h command, address insertion for the second plane, 10h command)
2. ONFI 1.0 (85h command, address insertion for the first plane, 11h command, 85h
command, address insertion for the second plane, 10h command).
The EDC check is also performed during the multiplane copy back program. Errors during
multiplane copy back operations can be detected by performing a read EDC Status register
operation (see Section 6.13: Read EDC status register).
If the multiplane copy back program fails, an error is signaled on bit SR0 of the Status
register. To know which page of the two planes failed, the Read Status Enhanced command
must be executed twice, once for each plane (see Section 6.12). Figure 16 provides a
description of multiplane copy back program waveforms.
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