AT49BV162/163A(T)
Status Bit Table
Status Bit
I/O7
00
I/O7
01
0
I/O6
I/O5(1)
I/O3(2)
I/O2
00/01
1
RDY/BUSY
Configuration Register
Programming
00/01
00/01
00/01
00/01
I/O7
0
TOGGLE
TOGGLE
0
0
0
0
0
0
Erasing
0
TOGGLE
Erase Suspended & Read
Erasing Sector
1
1
DATA
0
1
0
DATA
0
0
DATA
0
TOGGLE
DATA
1
1
0
Erase Suspended & Read
Non-erasing Sector
DATA
I/O7
DATA
Erase Suspended &
Program Non-erasing Sector
TOGGLE
TOGGLE
Erase Suspended &
Program Suspended and
Reading from Non-
suspended Sectors
DATA
DATA
DATA
DATA
DATA
DATA
1
Program Suspended & Read
Programming Sector
I/O7
1
1
0
0
TOGGLE
DATA
1
1
Program Suspended & Read
Non-programming Sector
DATA
DATA
DATA
DATA
DATA
Notes: 1. I/O5 switches to a “1” when a program or an erase operation has exceeded the maximum time limits or when a program or
sector erase operation is performed on a protected sector.
2. I/O3 switches to a “1” when the VPP level is not high enough to successfully perform program and erase operations. This
status bit is not available for the AT49BV163A(T).
11
3349G–FLASH–7/04
ATMEL [ ATMEL ]
