Switching waveforms – Cypress CY7C028V User Manual

Page 13

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CY7C027V/027VN/027AV/028V

CY7C037V/037AV/038V

Document #: 38-06078 Rev. *B

Page 13 of 18

Note

34. If t

PS

is violated, the busy signal is asserted on one side or the other, but there is no guarantee to which side BUSY is asserted.

Switching Waveforms

(continued)

ADDRESS MATCH

t

PS

t

BLC

t

BHC

ADDRESS MATCH

t

PS

t

BLC

t

BHC

CE

R

Valid First:

ADDRESS

L,R

BUSY

R

CE

L

CE

R

BUSY

L

CE

R

CE

L

ADDRESS

L,R

Figure 13. Busy Timing Diagram No. 1 (CE Arbitration)

[34]

CE

L

Valid First:

ADDRESS MATCH

t

PS

ADDRESS

L

BUSY

R

ADDRESS MISMATCH

t

RC

or t

WC

t

BLA

t

BHA

ADDRESS

R

ADDRESS MATCH

ADDRESS MISMATCH

t

PS

ADDRESS

L

BUSY

L

t

RC

or t

WC

t

BLA

t

BHA

ADDRESS

R

Right Address Valid First:

Figure 14. Busy Timing Diagram No. 2 (Address Arbitration)

[34]

Left Address Valid First:

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