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Numonyxâ„¢ Wireless Flash Memory (W30)

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Numonyx <strong>Wireless</strong> <strong>Flash</strong> <strong>Memory</strong> (<strong>W30</strong>)<br />

B.5 <strong>Flash</strong> Device Geometry Definition<br />

Table 38: <strong>Flash</strong> Device Geometry Definition<br />

Offset Length Description Code<br />

27h 1 “n” such that device size = 2 n in number of bytes<br />

<strong>Flash</strong> device interface code assignment:<br />

"n" such that n+1 specifies the bit field that represents the flash<br />

device width capabilities as described in the table:<br />

27: See table below<br />

7 6 5 4 3 2 1 0<br />

28h 2 — — — — x64 x32 x16 x8 28: --01 x16<br />

15 14 13 12 11 10 9 8<br />

— — — — — — — — 29: --00<br />

2Ah 2 “n” such that maximum number of bytes in write buffer = 2 n<br />

2A: --00 0<br />

2B: --00<br />

2Ch 1 Number of erase block regions (x) within device:<br />

1. x = 0 means no erase blocking; the device erases in bulk<br />

2C:<br />

2. x specifies the number of device regions with one or<br />

more contiguous same-size erase blocks.<br />

3. Symmetrically blocked partitions have one blocking region<br />

See table below<br />

2Dh 4 Erase Block Region 1 Information 2D:<br />

bits 0–15 = y, y+1 = number of identical-size erase blocks<br />

bits 16–31 = z, region erase block(s) size are z x 256 bytes<br />

2E:<br />

2F:<br />

30:<br />

See table below<br />

31h 4 Erase Block Region 2 Information 31:<br />

bits 0–15 = y, y+1 = number of identical-size erase blocks<br />

bits 16–31 = z, region erase block(s) size are z x 256 bytes<br />

32:<br />

33:<br />

34:<br />

See table below<br />

35h 4 Reserved for future erase block region information 35:<br />

36:<br />

37:<br />

38:<br />

See table below<br />

Address 32 Mbit<br />

64 Mbit 128 Mbit<br />

–B –T –B –T –B –T<br />

27: --16 --16 --17 --17 --18 --18<br />

28: --01 --01 --01 --01 --01 --01<br />

29: --00 --00 --00 --00 --00 --00<br />

2A: --00 --00 --00 --00 --00 --00<br />

2B: --00 --00 --00 --00 --00 --00<br />

2C: --02 --02 --02 --02 --02 --02<br />

2D: --07 --3E --07 --7E --07 --FE<br />

2E: --00 --00 --00 --00 --00 --00<br />

2F: --20 --00 --20 --00 --20 --00<br />

30: --00 --01 --00 --01 --00 --01<br />

31: --3E --07 --7E --07 --FE --07<br />

32: --00 --00 --00 --00 --00 --00<br />

33: --00 --20 --00 --20 --00 --20<br />

34: --01 --00 --01 --00 --01 --00<br />

35: --00 --00 --00 --00 --00 --00<br />

36: --00 --00 --00 --00 --00 --00<br />

37: --00 --00 --00 --00 --00 --00<br />

38: --00 --00 --00 --00 --00 --00<br />

November 2007 Datasheet<br />

Order Number: 290702-13 93

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