PC28F640P33BF60D Datasheet, PDF (64/88 Pages) Numonyx B.V – Numonyx® P33-65nm Flash Memory 128-Mbit, 64-Mbit Single Bit per Cell (SBC)

P33-65nm
A.1.4
Device Geometry Definition
Table 33: Device Geometry Definition
Offset Length
Description
27h
1
“n” such that device size = 2ⁿ in number of bytes
Flash device interface code assignment:
"n" such that n+1 specifies the bit field that represents the flash device width
capabilities as described in the table:
28h
2
7
6
5
4
3
2
1
0
_
_
_
_
x64
x32
x16
x8
15
14
13
12
11
10
9
8
_
_
_
_
_
_
_
_
2Ah
2
“n” such that maximum number of bytes in write buffer = 2ⁿ
Number of erase block regions (x) within device:
1. x = 0 means no erase blocking; the device erases in bulk
2Ch
1
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
2D
4
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
31h
4
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
35h
4
Reserved for future erase block region information
Add
27:
28:
29:
2A:
2B:
2C:
2D:
2E:
2F:
30:
31:
32:
33:
34:
35:
36:
37:
38:
Hex
Code
Value
See Table Below
-01
x16
-00
-09
512
-00
See Table Below
See Table Below
See Table Below
See Table Below
Address
27:
28:
29:
2A
2B
2C:
2D:
2E:
2F:
64-Mbit
-B
-T
-17
-17
-01
-01
-00
-00
-09
-09
-00
-00
-02
-02
-03
-3E
-00
-00
-80
-00
128-Mbit
-B
-T
-18
-18
-01
-01
-00
-00
-09
-09
-00
-00
-02
-02
-03
-7E
-00
-00
-80
-00
Address
30:
31:
32:
33:
34:
35:
36:
37:
38:
64-Mbit
-B
-T
-00
-02
-3E
-03
-00
-00
-00
-80
-02
-00
-00
-00
-00
-00
-00
-00
-00
-00
128-Mbit
-B
-T
-00
-02
-7E
-03
-00
-00
-00
-80
-02
-00
-00
-00
-00
-00
-00
-00
-00
-00
Datasheet
64
Jul 2011
Order Number: 208034-04