Cypress CY7C1334H manual NOP, STALL, and Deselect Cycles18, 19, DA4, ZZ Mode Timing22

CY7C1334H

Switching Waveforms (continued)

NOP, STALL, and Deselect Cycles[18, 19, 21]

1 2 3 4 5 6 7 8 9 10

CLK

CEN

CE

ADV/LD

WE

BW[A:D]

ADDRESS	A1	A2	A3	A4		A5
							tCHZ
Data			D(A1)	Q(A2)	Q(A3)	D(A4)	Q(A5)

In-Out (DQ)

WRITE

D(A1)

READ Q(A2)

STALL

READ Q(A3)

WRITE

D(A4)

STALL

NOP

READ Q(A5)

DESELECT

CONTINUE DESELECT

DON’T CARE UNDEFINED

ZZMode Timing[22, 23]

CLK

t ZZ

ZZ

t ZZI

ISUPPLY

I DDZZ

ALL INPUTS (except ZZ)

Outputs (Q)

Notes:

High-Z

DON’T CARE

t ZZREC

t RZZI

DESELECT or READ Only

21.The IGNORE CLOCK EDGE or STALL cycle (Clock 3) illustrated CEN being used to create a pause. A write is not performed during this cycle.

22.Device must be deselected when entering ZZ mode. See cycle description table for all possible signal conditions to deselect the device.

23.I/Os are in High-Z when exiting ZZ sleep mode.

Document #: 38-05678 Rev. *B Page 11 of 13

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