LH28F320S3HNS-ZM【PDF 28/65 页】IC FLASH 32MBIT 110NS 56SSOP

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Start

LHF32KZM

25

Write E8H,

Start Address

Read Extend

Status Register

Bus

Operation

Write

Command

Setup

Multi Word/Byte Write

Comments

Data=E8H

Addr=Start Address

No

Read

Extended Status Register Data

XSR.7=

1

0

Write Buffer

Time Out

Yes

Standby

Check XSR.7

1=Multi Word/Byte Write Ready

0=Multi Word/Byte Write Busy

Write Word or Byte Count (N)-1,

Start Address

Write Buffer Data,

Start Address

X=0

Write

(Note1)

Write

(Note2,3)

Write

(Note4,5)

Data=Word or Byte Count (N)-1

Addr=Start Address

Data=Buffer Data

Addr=Start Address

Data=Buffer Data

Addr=Device Address

Data=D0H

Abort Buffer

Write Commnad?

Yes

Write Another

Block Address

Write

Addr=X

No

Multi Word/Byte Write

Read

Status Register Data

Write Buffer Data,

Device Address

Abort

Standby

Check SR.7

1=WSM Ready

0=WSM Busy

Yes

X=N

No

X=X+1

Write D0H

Another

Buffer

Write ?

No

Read Status

Register

Yes

No

Suspend Multi Word/Byte

Write Loop

1. Byte or word count values on DQ 0-7 are loaded into the count register.

2. Write Buffer contents will be programmed at the start address.

3. Align the start address on a Write Buffer boundary for maximum

programming performance.

4.The device aborts the Multi Word/Byte Write command if the current address is

outside of the original block address.

5.The Status Register indicates an "improper command sequence" if the Multi

Word/Byte command is aborted. Follow this with a Clear Status Register command.

SR full status check can be done after each multi word/byte write,

or after a sequence of multi word/byte writes.

Write FFH after the last multi word/byte write operation to place device in

read array mode.

SR.7=

0

Suspend

Multi Word/Byte

Yes

Write

1

Full Status

Check if Desired

Multi Word/Byte Write

Complete

Figure 8. Automated Multi Word/Byte Write Flowchart

Rev. 1.6

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