11

AT49BV/LV320(T)/321(T)

1494H–FLASH–01/03

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.

Status Bit Table

Status Bit

I/O7

I/O7

I/O6

I/O5

(1)

I/O3

(2)

I/O2

RDY/BUSY

Configuration Register

00

01

00/01

00/01

00/01

00/01

00/01

Programming

I/O7

0

TOGGLE

0

0

1

0

Erasing

0

0

TOGGLE

0

0

TOGGLE

0

Erase Suspended & Read

Erasing Sector

1

1

1

0

0

TOGGLE

1

Erase Suspended & Read

Non-erasing Sector

DATA

DATA

DATA

DATA

DATA

DATA

1

Erase Suspended &

Program Non-erasing Sector

I/O7

0

TOGGLE

0

0

TOGGLE

0