Cypress STK17T88 Computer Hardware User Manual


 
STK17T88
Document Number: 001-52040 Rev. *A Page 10 of 22
Hardware STORE Cycle
Figure 11. Hardware STORE Cycle
Soft Sequence Commands
Figure 12. Soft Sequence Command
NO.
Symbols
Parameter
STK17T88
Units Notes
Standard Alternate Min Max
31 t
DELAY
t
HLQZ
Hardware STORE to SRAM Disabled 1 70 µs14
32 t
HLHX
Hardware STORE Pulse Width 15 ns
32
23
31
NO.
Symbols Parameter STK17T88 Units Notes
Standard Min Max
33 t
SS
Soft Sequence Processing Time 70 µs 15, 16
33 33
Notes
14. On a hardware STORE initiation, SRAM operation continues to be enabled for time tDELAY to allow read/write cycles to complete
15. This is the amount of time that it takes to take action on a soft sequence command. Vcc power must remain high to effectively register command.
16. Commands like Store and Recall lock out I/O until operation is complete which further increases this time. See specific command
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