EN29LV040A EON [Eon Silicon Solution Inc.], EN29LV040A Datasheet - Page 15

• Manufacturer Part Number: EN29LV040A
• Description: 4 Megabit (512K x 8-bit ) Uniform Sector, CMOS 3.0 Volt-only Flash Memory
• Manufacturer: EON [Eon Silicon Solution Inc.]

Table 6. Status Register Bits
Notes:
DQ7
DQ5 for Program or Erase Success.
DQ6 Toggle Bit: remains at constant level when P/E 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 Timeout 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.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
DATA
DQ
7
6
5
3
2
Polling: indicates the P/E C status check during Program or Erase, and on completion before checking bits
ERROR BIT
POLLING
TIME BIT
TOGGLE
TOGGLE
ERASE
DATA
Name
BIT
BIT
‘-1-0-1-0-1-0-1-’
‘-1-1-1-1-1-1-1-‘
‘-1-0-1-0-1-0-1-’
Logic Level
DQ7
DQ7
DQ6
DQ2
‘1’
‘0’
‘1’
‘0’
‘1’
‘0’
Rev. A, Issue Date: 2005/08/16
15
erase Sector in Erase suspend
Erase timeout period on-going
Sector. (When DQ5=1, Erase
Read during Erase Suspend
addressed Sector. Program
Erase or Program On-going
Program or Erase On-going
Chip Erase, Erase or Erase
non Erase Suspend Sector
during Erase Suspend on-
data of non-erase Sector
going at current address
Erase Suspend read on
Program or Erase Error
©2003 Eon Silicon Solution, Inc., www.essi.com.tw
during Erase Suspend
Program Complete or
Error due to currently
Erase operation start
suspend on currently
Program On-Going
Erase Complete or
Erase On-Going
Erase Complete
Definition
addressed
EN29LV040A