M95M02-DRMN6TP datasheet(18/41 Pages) STMICROELECTRONICS

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Instructions

M95M02-DR

18/41

DocID18203 Rev 8

Figure 9. Write Disable (WRDI) sequence

6.3

Read Status Register (RDSR)

The Read Status Register (RDSR) instruction is used to read the Status Register. The

Status Register may be read at any time, even while a Write or Write Status Register cycle is

in progress. When one of these cycles is in progress, it is recommended to check the Write

In Progress (WIP) bit before sending a new instruction to the device. It is also possible to

read the Status Register continuously, as shown in Figure 10.

Figure 10. Read Status Register (RDSR) sequence

The status and control bits of the Status Register are as follows:

6.3.1

WIP bit

The Write In Progress (WIP) bit indicates whether the memory is busy with a Write or Write

Status Register cycle. When set to 1, such a cycle is in progress, when reset to 0, no such

cycle is in progress.

AI03750D

34567

High Impedance

Instruction

3456789 10 11 12 13 14 15

Instruction

AI02031E

6543210

Status Register Out

High Impedance

MSB

6543210

Status Register Out

MSB

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