X20C16
SDP (Software Data Protection)
Store State Diagram
POWER UP
POWER UP
Power
Down
Power On
Recall
S0
NO STORE
Software
Store
Enabled
SS
ADDR 555,
DATA AA
ADDR 555,
DATA AA
RAS
EAS
S1
NO STORE
ADDR 2AA,
DATA 55
Software
Store &
AUTOSTORE
Enabled
ADDR 555,
DATA AA
Power Down
(AUTOSTORE)
S2
NO STORE
WRITE: ADDR 555,
DATA=COMMAND
EAS
SS
3826 FHD F13.1
STORE ON SS
OR
ENABLE/RESET
AUTOSTORE
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