X25057 Datasheet, PDF (5/16 Pages) Xicor Inc. – 5MHz Low Power SPI Serial E 2 PROM with IDLock™ Memory

X25057
Figure 2. Read Operation Sequence
CS
SCK
SI
0123456789
20 21 22 23 24 25 26 27 28 29 30
READ INSTRUCTION
(1 BYTE)
BYTE ADDRESS (2 BYTE)
15 14
3210
DATA OUT
HIGH IMPEDANCE
SO
Figure 3. Read Status Operation Sequence
CS
SCK
SI
SO
01234567
READ STATUS
INSTRUCTION
NONVOLATILE WRITE IN PROGRESS
SO HIGH DURING
NONVOLATILE
WRITE CYCLE
76543210
7033 FRM F03.1
...
...
I_II
DDD
LLL
2 10
...
SO = STATUS REG BIT
WHEN NO NONVOLATILE
WRITE CYCLE
7033 FRM F04.2
5