AT49BV160C 查看數據表（PDF） - Atmel Corporation

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AT49BV160C

16-megabit (1M x 16) 3-volt Only Flash Memory

Atmel Corporation 

Word Program Flowchart

Start

Write 40,

Word Address

(Setup)

Write Data, (Confirm)

Word Address

Read Status

Register

SR7 =

0

1

Full Status

Check

(If Desired)

No

Suspend?

Program

Suspend

Loop

Yes

Word Program Procedure

Bus

Operation Command Comments

Write

Program

Setup

Data = 40

Addr = Location to program

Write

Data

Data = Data to program

Addr = Location to program

Read

None

Status register data: Toggle CE or

OE to update status register

Idle

None

Check SR7

1 = WSM Ready

0 = WSM Busy

Repeat for subsequent Word Program operations.

Full status register check can be done after each program, or after a

sequence of program operations.

Write FF after the last operation to set to the Read state.

Program

Complete

Full Status Check Flowchart

Read Status

Register

SR3 =

1

0

SR4 =

1

0

SR1 =

1

0

Program

Successful

VPP Range

Error

Program

Error

Device

Protect Error

Full Status Check Procedure

Bus

Operation Command Comments

Idle

None

Check SR3:

1 = VPP Error

Idle

None

Check SR4:

1 = Data Program Error

Idle

None

Check SR1:

1 = Sector locked; operation aborted

SR3 MUST be cleared before the Write State Machine allows further program

attempts.

If an error is detected, clear the status register before continuing operations –

only the Clear Status Register command clears the status register error bits.

10 AT49BV160C(T)

3367D–FLASH–5/04

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