BC352239A Datasheet, PDF (59/116 Pages) List of Unclassifed Manufacturers – BlueCore 3-Multimedia External

Device Terminal Descriptions
8.4.1 Minimum Flash Specification
The flash device used with BlueCore3-Multimedia External must meet the following criteria:
! Either standard or extended form of the JEDEC (AMD/Fujitsu/SST) or Intel command set.
! Access time must be ≤50ns @85°C 10pF load.
! Write strobe of 100ns.
! Accessible in word mode, i.e., via a 16-bit data bus.
! Support changing different bits within each word from 1 to 0 in at least two separate programming
operations.
! Programming and erase times must have fixed upper limits.
! Must be bottom boot or uniform sector.
! Must have independently erasable sectors with at least the following boundaries (see Memory Map for
more information).
Word Address
Size (kWords)
0x00000 - 0x01FFF
0x02000 - 0x02FFF
0x03000 - 0x03FFF
0x04000 - 0x07FFF
0x08000 - 0x0FFFF
0x10000 - 0x17FFF
0x18000 - ...
8
4
4
16
32
32
Don’t care
Table 8.8: Flash Sector Boundaries
Important Note:
Satisfaction of these criteria is not sufficient for a particular device to be used; it must also support the
Common Flash Interface described in Section 8.4.2 or be supported in the BlueCore3-Multimedia External
firmware and host-side tools.
BC352239A-ds-001Pc
© Cambridge Silicon Radio Limited 2004
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