stk14ee16 Simtek Corporation, stk14ee16 Datasheet - Page 15

• Manufacturer Part Number: stk14ee16
• Description: 512kx16 Autostore Nvsram
• Manufacturer: Simtek Corporation

Document Control #ML0069 Rev 1.0
Preliminary
March, 2008
Figure 4 - Current vs Cycle Time
Simtek Confidential
15
PREVENTING AUTOSTORE
The AutoStore function can be disabled by initiating
an AutoStore Disable sequence. A sequence of
READ operations is performed in a manner similar
to the software STORE initiation. To initiate the
AutoStore
sequence of E controlled or G controlled READ
operations must be performed:
The AutoStore can be re-enabled by initiating an
AutoStore Enable sequence. A sequence of READ
operations is performed in a manner similar to the
software
AutoStore
sequence of E controlled or G controlled READ
operations must be performed:
If the AutoStore function is disabled or re-enabled,
a manual STORE operation (Hardware or Soft-
ware) needs to be issued to save the AutoStore
state through subsequent power down cycles. The
part comes from the factory with AutoStore
enabled, but best design practice is to set the
enable or disable state during each power-up
sequence and not depend on this factory default
condition. Simtek recommends users configure the
part completely for the specific application.
1 Read Address
2 Read Address
3 Read Address
4 Read Address
5 Read Address
6 Read Address
1 Read Address
2 Read Address
3 Read Address
4 Read Address
5 Read Address
6 Read Address
RECALL
Disable
Enable
0x04E38
0x0B1C7
0x083E0
0x07C1F
0x0703F
0x04B46
0x04E38
0x0B1C7
0x083E0
0x07C1F
0x0703F
0x08B45
initiation.
sequence,
sequence,
STK14EE16
Valid READ
Valid READ
Valid READ
Valid READ
Valid READ
AutoStore Enable
Valid READ
Valid READ
Valid READ
Valid READ
Valid READ
AutoStore Disable
To
the
the
initiate
following
following
the