JS28F320J3F75 datasheet(60/67 Pages) NUMONYX

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Datasheet

Numonyx® Embedded Flash Memory (J3 65 nm) Single Bit per Cell (SBC)

13.3

Block Status Register

The Block Status Register indicates whether an erase operation completed successfully

or whether a given block is locked or can be accessed for flash program/erase

operations.

13.4

CFI Query Identification String

The CFI Query Identification String provides verification that the component supports

the Common Flash Interface specification. It also indicates the specification version and

supported vendor-specified command set(s).

27h

Device Geometry Definition

Flash Device Layout

P(3)

Primary Numonyx-Specific Extended

Query Table

Vendor-Defined Additional Information Specific to

the Primary Vendor Algorithm

1,3

Notes:

Refer to the Query Structure Output section and offset 28h for the detailed definition of offset address as a

function of device bus width and mode.

BA = Block Address beginning location (i.e., 02000h is block 2’s beginning location when the block size is

128 KB).

Offset 15 defines “P” which points to the Primary Numonyx-Specific Extended Query Table.

Table 37: Query Structure

Offset

Sub-Section Name

Description

Notes

Table 38: Block Status Register

Offset

Length

Description

Address

Value

(BA+2)h(1)

Block Lock Status Register

BA+2:

--00 or --01

BSR.0 Block Lock Status

0 = Unlocked

1 = Locked

BA+2:

(bit 0): 0 or 1

BSR 1–15: Reserved for Future Use

BA+2:

(bit 1–15): 0

Note:

BA = The beginning location of a Block Address (i.e., 010000h is block 1’s (64-KW block) beginning location in word

mode).

Table 39: CFI Identification

Offset

Length

Description

Add.

Hex

Code

Value

10h

Query-unique ASCII string “QRY”

--51

“Q”

11:

--52

“R”

12:

--59

“Y”

13h

Primary vendor command set and control interface ID code.

13:

--01

16-bit ID code for vendor-specified algorithms

14:

--00

15h

Extended Query Table primary algorithm address

15:

--31

16:

--00

17h

Alternate vendor command set and control interface ID code.

17:

--00

0000h means no second vendor-specified algorithm exists

18:

--00

19h

Secondary algorithm Extended Query Table address.

19:

--00

0000h means none exists

1A:

--00

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