SST26VF016BEUI datasheet(9/78 Pages) MICROCHIP

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 2019 Microchip Technology Inc.

DS20006153A-page 9

SST26VF016BEUI

4.5

Status Register

The Status register is a read-only register that provides

the following status information: whether the flash

memory array is available for any Read or Write oper-

ation, if the device is write-enabled, whether an erase

or program operation is suspended, and if the Block-

Protection register and/or Security ID are locked down.

During an internal Erase or Program operation, the Sta-

tus register may be read to determine the completion of

an operation in progress. Table 4-2 describes the func-

tion of each bit in the Status register.

TABLE 4-2:

STATUS REGISTER

Bit

Name

Function

Default at

Power-up

Read/Write

(R/W)

BUSY

Write operation status

1 = Internal Write operation is in progress

0 = No internal Write operation is in progress

WEL

Write-Enable Latch status

1 = Device is write-enabled

0 = Device is not write-enabled

WSE

Write Suspend-Erase status

1 = Erase suspended

0 = Erase is not suspended

WSP

Write Suspend-Program status

1 = Program suspended

0 = Program is not suspended

WPLD

Write Protection Lock-Down status

1 = Write Protection Lock-Down enabled

0 = Write Protection Lock-Down disabled

SEC1

1. The Security ID status will always be ‘1’ at power-up after a successful execution of the Lockout Security ID instruction, oth-

erwise default at power-up is ‘0’.

Security ID status

1 = Security ID space locked

0 = Security ID space not locked

RES

Reserved for future use

BUSY

Write operation status

1 = Internal Write operation is in progress

0 = No internal Write operation is in progress

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