EN29F080 데이터 시트보기 (PDF) - Eon Silicon Solution Inc.

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EN29F080

8 Megabit (1024K x 8-bit) Flash Memory

Eon Silicon Solution Inc. 

EN29F080

Table 6. Status Register Bits

DQ

Name

Logic Level

Definition

Erase Complete or

‘1’

erase Sector in Erase

suspend

7

DATA

POLLING

‘0’

DQ7

Erase On-Going

Program Complete or

data of non-erase Sector

during Erase Suspend

DQ7

Program On-Going

‘-1-0-1-0-1-0-1-’ Erase or Program On-going

6

TOGGLE

BIT

DQ6

Read during Erase Suspend

‘-1-1-1-1-1-1-1-‘

Erase Complete

5

ERROR BIT

‘1’

Program or Erase Error

‘0’

Program or Erase On-going

ERASE

3

TIME BIT

‘1’

Erase operation start

‘0’

Erase timeout period on-going

Chip Erase, Erase or Erase

suspend on currently

addressed

Sector. (When DQ5=1, Erase

2

TOGGLE

BIT

‘-1-0-1-0-1-0-1-’

Error due to currently

addressed Sector. Program

during Erase Suspend on-

going at current address

DQ2

Erase Suspend read on

non Erase Suspend Sector

Notes:

DQ7 DATA Polling: indicates the P/E C status check during Program or Erase, and on completion before checking bits

DQ5 for Program or Erase Success.

DQ6 Toggle Bit: remains at constant level when P/E C operations are complete or erase suspend is acknowledged.

Successive reads output complementary data on DQ6 while programming or Erase operation are on-going.

DQ5 Error Bit: set to “1’ if failure in programming or erase

DQ3 Sector Erase Command Time out Bit: Operation has started. Only possible command is Erase suspend (ES).

DQ2 Toggle Bit: indicates the Erase status and allows identification of the erased Sector.

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Rev. C, Issue Date: 2001/07/05

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