48LM01 datasheet(16/40 Pages) MICROCHIP

Teilenummer	48LM01

Bauteilbeschribung	512-Kbit/1-Mbit SPI Serial EERAM

PDF	40 Pages

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Hersteller	MICROCHIP [Microchip Technology]

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DS20006008C-page 16

48L512/48LM01

6.5

Write STATUS Register (WRSR)

The Write STATUS Register (WRSR) instruction enables

the SPI Master to change selected bits of the STATUS

WREN

instruction must be executed to set the WEL bit

to logic ‘1’. Upon completion of a WREN sequence, a

WRSR sequence can be executed.

The WRSR command can be used to modify the

writable bits in the STATUS register. The SWM and

RDY/BSY bits are read-only. The 48L512/48LM01 will

respond to commands immediately after a WRSR

sequence.

FIGURE 6-2:

WRSR WAVEFORM

Note:

The updated STATUS register value will

only be stored into nonvolatile memory

when there is a store operation.

9 1011

1415

SCK

3 4 5 6

12 13

High-Impedance

0000

DD DD D D D D

WRSR Opcode

STATUS Register

MSb

48LM01 Datenblatt(PDF) 16 Page - Microchip Technology