PC28F512G18FF Datasheet, PDF (34/118 Pages) Micron Technology – 128Mb, 256Mb, 512Mb, 1Gb StrataFlash Memory

128Mb, 256Mb, 512Mb, 1Gb StrataFlash Memory
Programming Modes
Figure 10: Configurable Programming Regions: Control Mode and Object Mode
Main Array
256KB
256_..KB
256KB
256KB
..
256KB
...
...
...
256Kb Block
1KB
512 Bytes
A half
(control mode)
512 Bytes
B half
(erased)
...
Programming region in object mode.
Address Bit A3 = 0: Allows up to 1KB
of data to be programmed.
Programming region in control mode
Address Bit A3 = 1: Allows up to
512 bytes of data to be programmed
to the A half by bit, byte, or word.
...
1KB
Programming region in object mode
...
256KB
256_..KB
256KB
1KB
Programming region in object mode
Object Mode
Object mode programming is invoked when one or more bits are programmed to zero
in the B-half of the programming region (A3 = 1).
Object mode allows up to 1KB to be stored in a programming region. Multiple regions
are used to store more than 1KB of information. If the object is less than 1KB, the un-
used content will remain as 0xFFFF (erased).
Object mode supports the following programming methods:
• Buffered programming (00E9h/00D0h)
• Buffered enhanced factory programming (0080h/00D0h)
Single-word programming (0041h) is not supported in object mode. To perform multi-
ple PROGRAM operations within a programming region, control mode must be used.
PDF: 09005aef8448483a
128_256_512_65nm_g18.pdf - Rev. F 8/11 EN
34
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2011 Micron Technology, Inc. All rights reserved.