W49V002FAQ datasheet(26/32 Pages) WINBOND

26 / 32 page

W49V002FA

- 26 -

Timing Waveforms for FWH Interface Mode, continued

Boot Block Lockout Enable Timing Diagram

6th Start

Load Address "5555" 7 Clocks

Sync

Internal

program start

TAR

1 Clock

2 Clocks

X101b

Load Data "40"

in 2 Clocks

0100b

Write the 6th command to the device in FWH mode.

0101b

0000b

1111b

Tri-State

0000b

Data

Address

FWH4

FWH[3:0]

1st Start

Load Address "5555" in 7 Clocks

CLK

1 Clock

2 Clocks

X101b

0101b

Load Data "AA"

in 2 Clocks

1010b

Write the 1st command to the device in FWH mode.

FWH4

FWH[3:0]

CLK

FWH4

FWH[3:0]

CLK

FWH4

FWH[3:0]

CLK

Address

Sync

TAR

Data

2nd Start

Load Address "2AAA" in 7 Clocks

1 Clocks

2 Clocks

X010b

1010b

Load Data "55"

in 2 Clocks

0101b

Write the 2nd command to the device in FWH mode.

3rd Start

Load Address "5555" in 7 Clocks

1 Clock

2 Clocks

X101b

0101b

Load Data "80"

in 2 Clocks

1000b

0000b

Write the 3rd command to the device in FWH mode.

Address

Sync

TAR

Data

Sync

TAR

Data

1111b

Tri-State

0000b

1111b

Tri-State

0000b

1111b

Tri-State

0000b

4th Start

Load Address "5555" in 7 Clocks

1 Clock

2 Clocks

X101b

0101b

Load Data "AA"

in 2 Clocks

1010b

Write the 4th command to the device in FWH mode.

5th Start

Load Address "2AAA" in 7 Clocks

1 Clock

2 Clocks

X010b

1010b

Load Data "55"

in 2 Clocks

0101b

Write the 5th command to the device in FWH mode.

Address

Sync

TAR

Data

Sync

TAR

Data

1111b

Tri-State

0000b

1111b

Tri-State

0000b

FWH4

FWH[3:0]

CLK

FWH4

FWH[3:0]

CLK

program start

IDSEL

0000b

M Size

XXXXb

Start next

command

1 Clock

2 Clocks

TAR

1111b

Tri-State

Start next

command

1 Clock

2 Clocks

TAR

1111b

Tri-State

Start next

command

1 Clock

2 Clocks

TAR

1111b

Tri-State

Start next

command

1 Clock

2 Clocks

TAR

1111b

Tri-State

Start next

command

1 Clock

2 Clocks

TAR

1111b

Tri-State

Internal

TAR

2 Clocks

1111b Tri-State

1 Clock

0000b

1110b

1 Clock

0000b

1110b

1 Clock

0000b

1110b

1 Clock

0000b

1110b

1 Clock

0000b

1110b

1 Clock

0000b

1110b

#RESET

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