JS48F4400P0P3C0 datasheet(82/139 Pages) NUMONYX

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Numonyx™ StrataFlash® Cellular Memory (M18)

Datasheet

April 2008

309823-10

Note:

Issuing the Read Array command to a partition that is actively programming or erasing

causes subsequent reads from that partition to output invalid data. Valid array data is

output only after the program or erase operation has finished.

The Read Array command functions independent of the voltage level on VPP.

9.4.2

Read Status Register

Issuing the Read Status Register command places the addressed partition in Read

Status Register mode. Subsequent reads from that partition output Status Register

information. The addressed partition remains in Read Status Register mode until a

different read-mode command is issued to that partition. Performing a program, erase,

or block-lock operation also changes the partition’s read mode to Read Status Register

mode.

The Status Register is updated on the falling edge of CE#, or OE# when CE# is low.

Status Register contents are valid only when SR7 = 1.

The Read Status Register command functions independent of the voltage level on VPP.

9.4.3

Read Device Information

Issuing the Read Device Information command places the addressed partition in Read

Device Information mode. Subsequent reads output device information on the data

bus. The address offsets for reading the available device information are shown here.

The addressed partition remains in Read Device Information mode until a different read

command is issued. Also, performing a program, erase, or block-lock operation changes

the addressed partition to Read Status Register mode.

Note:

Issuing the Read Device Information command to a partition that is actively

programming or erasing changes that partition’s read mode to Read Device Information

mode. Subsequent reads from that partition will return invalid data until the program or

erase operation has completed.

The Read Device Information command functions independent of the voltage level on

VPP.

Table 37: Device Information Summary

Device Information

Address Bus

Data Bus

Device Manufacturer Code (Numonyx)

Partition Base Address + 00h

0089h

Device ID Code

Partition Base Address + 01h

Device IDs

Main Block Lock Status

Block Base Address + 02h

D0 = Lock Status

D1 = Lock-Down Status

Read Configuration Register

Partition Base Address + 05h

Configuration Register Data

Enhanced Configuration Register

Partition Base Address + 06h

Enhanced Configuration

OTP Lock Register 0

Partition Base Address + 80h

Lock Register 0 Data

OTP Register - Factory Segment

Partition Base Address + 81h to 84h

Factory-Programmed Data

OTP Register - User-Programmable Segment

Partition Base Address + 85h to 88h

User Data

OTP Lock Register 1

Partition Base Address + 89h

Lock Register 1 Data

OTP Registers 1 through 16

Partition Base Address + 8Ah to 109h

User Data

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