X20C16 Datasheet, PDF (13/21 Pages) Xicor Inc. – High Speed AUTOSTORE™ NOVRAM

X20C16
SDP (Software Data Protection)
POWER UP
S0
NO STORE
ADDR 555,
DATA AA
ADDR 555,
DATA AA
S1
NO STORE
ADDR 2AA,
DATA 55
ADDR 555,
DATA AA
NO STORE
S2
WRITE: ADDR 555,
DATA=COMMAND
STORE ON SS
OR
ENABLE/RESET
AUTOSTORE
Store State Diagram
POWER UP
Power
Down
Power On
Recall
Software
Store
SS
Enabled
RAS
EAS
Software
Store &
AUTOSTORE
Enabled
Power Down
(AUTOSTORE)
EAS
SS
3826 FHD F13.1
3826 FHD F12.1
SOFTWARE DATA PROTECTION COMMANDS
Command
Data
EAS
RAS
SS
Enable AUTOSTORE
Reset AUTOSTORE
Software Store
CC[H]
CD[H]
33[H]
3826 PGM T14.1
13