512Mb, 1Gb, 2Gb: P30-65nm
Common Flash Interface
Table 21: Device Geometry
Hex
Offset
27h
28h
Length
1
2
Description
n such that device size in bytes = 2
n
.
Flash device interface code assignment: n such that n + 1
specifies the bit field that represents the flash device width
capabilities as described here:
bit 0: x8
bit 1: x16
bit 2: x32
bit 3: x64
bits 4 - 7: –
bits 8 - 15: –
n such that maximum number of bytes in write buffer = 2
n
.
Number of erase block regions (x) within the device:
1) x = 0 means no erase blocking; the device erases in bulk.
2) x specifies the number of device regions with one or more
contiguous, same-size erase blocks.
3) Symmetrically blocked partitions have one blocking region.
Erase block region 1 information:
bits 0 - 15 = y, y + 1 = number of identical-size erase blocks.
bits 16 - 31 = z, region erase block(s) size are z x 256 bytes.
Erase block region 2 information:
bits 0 - 15 = y, y + 1 = number of identical-size erase blocks.
bits 16 - 31 = z, region erase block(s) size are z x 256 bytes.
Reserved for future erase block region information.
Address
27:
28:
29:
- -01
- -00
Hex
Code
ASCII Value
(DQ[7:0])
See Note 1
x16
2Ah
2Ch
2
1
2Ah
2Bh
2Ch
- -0A
- -00
1024
See Note 1
2Dh
4
2D:
2E:
2F:
30:
31:
32:
33:
34:
35:
36:
37:
38:
See Note 1
31h
4
See Note 1
35h
4
See Note 1
Note:
1. See Block Region Map Information table.
Table 22: Block Region Map Information
512Mb
Address
27:
28:
29:
2A:
2B:
2C:
2D:
Top
--1A
--01
--00
--0A
--00
--02
--FE
Bottom
--1A
--01
--00
--0A
--00
--02
--03
Symmetrical
--1A
--01
--00
--0A
--00
--01
--FF
Top
--1B
--01
--00
--0A
--00
--02
--FE
--1B
--01
--00
--0A
--00
--02
--03
1Gb
Bottom
Symmetrical
--1B
--01
--00
--0A
--00
--01
--FF
2Gb
Symmetrical
--1B
--01
--00
--0A
--00
--01
--FF
PDF: 09005aef845667b3
p30_65nm_MLC_512Mb-1gb_2gb.pdf - Rev. B 12/13 EN
51
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