W25Q16DW_12 Datasheet, PDF (16/85 Pages) Winbond – 1.8V 16M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI

W25Q16DW
QE bit will remain to be 1. A “Write Status Register” command in QPI mode cannot change QE bit from a
“1” to a “0”.
WARNING: If the /WP or /HOLD pins are tied directly to the power supply or ground during
standard SPI or Dual SPI operation, the QE bit should never be set to a 1.
S7 S6 S5 S4 S3 S2 S1 S0
STATUS REGISTER PROTECT 0
(non-volatile)
SECTOR PROTECT
(non-volatile)
TOP/BOTTOM PROTECT
(non-volatile)
BLOCK PROTECT BITS
(non-volatile)
WRITE ENABLE LATCH
ERASE/WRITE IN PROGRESS
SRP0 SEC TB BP2 BP1 BP0 WEL BUSY
Figure 4a. Status Register-1
S15 S14 S13 S12 S11 S10 S9 S8
SUSPEND STATUS
COMPLEMENT PROTECT
(non-volatile)
SECURITY REGISTER LOCK BITS
(non-volatile OTP)
QUAD ENABLE
(non-volatile)
STATUS REGISTER PROTECT 1
(non-volatile)
SUS CMP LB3 LB2 LB1 LB0 QE SRP1
Figure 4b. Status Register-2
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