W39V080FAQZ datasheet(26/35 Pages) WINBOND

номер детали	W39V080FAQZ

подробное описание детали	1M 횞 8 CMOS FLASH MEMORY WITH FWH INTERFACE

PDF	35 Pages

Scroll/Zoom	100%

производитель	WINBOND [Winbond]

домашняя страница	http://www.winbond.com

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26 / 35 page

W39V080FA

- 26 -

11. TIMING WAVEFORMS FOR FWH INTERFACE MODE

11.1 Read Cycle Timing Diagram

TCYC

FWH4

#RESET

FWH[3:0]

Start

FWH

Read

IDSEL

CLK

1 Clock

2 Clocks

A[15:12]

Address

Sync

TAR

1111b

Tri-State

0000b

TKQ

THD

TSU

A[11:8]

A[7:4]

0000

Data out 2 Clocks

D[7:4]

Data

D[3:0]

Next Start

1 Clock

0000b

THD

TSU

Load Address in 7

Clocks

A[3:0]

M Size

XXXXb XA[22]XXb A[19:16]

1 Clock

0000b

1101b

Note: When A22 = high, the host will read the BIOS code from the FWH device.

While A22 = low, the host will read the GPI (Add = FFBC0100) or

Product ID (Add = FFBC0000/FFBC0001) from the FWH device

1111b

Tri-State

2 Clocks

TAR

11.2 Write Cycle Timing Diagram

TCYC

FWH4

#RESET

FWH[3:0]

Start

FWH

Write

IDSEL

CLK

Next Start

1 Clock

A[15:12]

Load Data in 2 Clocks

D[7:4]

Address

Sync

2 Clocks

TAR

Data

1111b

Tri-State

0000b

THD

TSU

A[11:8]

A[7:4]

0000b

D[3:0]

0000b

Load Address in 7 Clocks

A[3:0]

M Size

XXXXb

1 Clock

0000b

1110b

2 Clocks

TAR

1111b

Tri-State

A[19:16]

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