STK11C68

Software Controlled STORE/RECALL Cycle

 

 

 

 

 

 

 

The software controlled STORE/RECALL cycle follows. [10, 11]

 

 

 

 

 

 

 

 

Parameter

 

Alt

 

Description

25 ns

35 ns

45 ns

Unit

 

 

 

Min

Max

Min

Max

Min

Max

 

 

 

 

 

 

 

tRC

tAVAV

STORE/RECALL Initiation Cycle Time

25

 

35

 

45

 

ns

t

[10]

t

AVEL

Address Setup Time

0

 

0

 

0

 

ns

 

SA

 

 

 

 

 

 

 

 

 

 

tCW[10]

tELEH

Clock Pulse Width

20

 

25

 

30

 

ns

tHACE[10]

tELAX

Address Hold Time

20

 

20

 

20

 

ns

tRECALL[10]

 

 

RECALL Duration

 

20

 

20

 

20

μs

Switching Waveform

Figure 10. CE Controlled Software STORE/RECALL Cycle [11]

ADDRESS

CE

OE

DQ (DATA)

tRC

ADDRESS # 1

tSA

 

 

 

tSCE

 

 

tHACE

DATA VALID

tRC

ADDRESS # 6

tSTORE / tRECALL

HIGH IMPEDANCE

DATA VALID

Notes

10.The software sequence is clocked on the falling edge of CE without involving OE (double clocking aborts the sequence).

11.The six consecutive addresses must be read in the order listed in Table 1 on page 4. WE must be HIGH during all six consecutive cycles.

Document Number: 001-50638 Rev. **

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Cypress STK11C68 manual Software Controlled STORE/RECALL Cycle, Alt Description 25 ns 35 ns 45 ns Unit Min Max