CAT28F001 데이터 시트보기 (PDF) - Catalyst Semiconductor => Onsemi

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CAT28F001

1 Megabit CMOS Boot Block Flash Memory

Catalyst Semiconductor => Onsemi 

Figure 6 Block Erase Suspend/Resume Flowchart

CAT28F001

START

WRITE B0H

READ STATUS

REGISTER

SR.7 = 1?

NO

YES

SR.6 = 1?

NO

YES

WRITE FFH

ERASE HAS

COMPLETED

DONE

NO

READING?

YES

WRITE D0H

Bus

Operation Command

Write

Erase

Suspend

Comments

Data = B0H

Standby/

Ready

Read Status Register

Check SR.7

1 = Ready, 0 = Busy

Toggle OE or CE to Update

Status Register

Standby

Check SR.6

1 = Suspended

Write

Read Array

Data = FFH

Read

Read array data from block other

than that being erased.

Write

Erase Resume Data = D0H

CONTINUE

ERASE

13

Doc. No. 25071-00 2/98 F-1

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