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SST26VF064B Datasheet(PDF) 10 Page - Microchip Technology |
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SST26VF064B Datasheet(HTML) 10 Page - Microchip Technology |
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10 / 85 page  SST26VF064B / SST26VF064BA DS20005119G-page 10 2015 Microchip Technology Inc. 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) 0 BUSY Write operation status 1 = Internal Write operation is in progress 0 = No internal Write operation is in progress 0R 1 WEL Write-Enable Latch status 1 = Device is write-enabled 0 = Device is not write-enabled 0R 2 WSE Write Suspend-Erase status 1 = Erase suspended 0 = Erase is not suspended 0R 3 WSP Write Suspend-Program status 1 = Program suspended 0 = Program is not suspended 0R 4 WPLD Write Protection Lock-Down status 1 = Write Protection Lock-Down enabled 0 = Write Protection Lock-Down disabled 0R 5 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 01 R 6 RES Reserved for future use 0R 7 BUSY Write operation status 1 = Internal Write operation is in progress 0 = No internal Write operation is in progress 0R |
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