17

AT49LW080/040

1966C–FLASH–03/02

Notes:

1. X = Any valid address within the device

2. The sector must be not be write locked when attempting sector erase or program operations. Attempts to issue a sector

erase or byte program to a write locked sector will fail.

3. SA = Sector address. Any byte address within a sector can be used to designate the sector address (see page 13).

4. Either 40H or 10H is recognized as the program setup.

5. Following the Product ID Entry command, read operations access manufacture and device ID. See Table 12.

6. AID = Address used to read data for manufacture or device ID

7. SRD = Data Read from status register

Table 11. General-purpose Input Registers

Bit

Function

7:5

Reserved

4

FGPI[4]

Reads status of general-purpose input pin (PLCC-30/TSOP-7)

3

FGPI[3]

Reads status of general-purpose input pin (PLCC-3/TSOP-15)

2

FGPI[2]

Reads status of general-purpose input pin (PLCC-4/TSOP-16)

1

FGPI[1]

Reads status of general-purpose input pin (PLCC-5/TSOP-17)

0

FGPI[0]

Reads status of general-purpose input pin (PLCC-6/TSOP-18)

Command Definitions in (Hex)

Command Sequence

Bus Cycles

Operation

1st Bus Cycle

Operation

2nd Bus Cycle

Addr

Data

Addr

Data

Read Array/Reset

1

Write

XXXX

FF

Sector Erase

(2)(3)

2Write

SA

20

Write

SA

D0

Byte Program

(2)(4)

2

Write

Addr

40 or 10

Write

Addr

D

IN

Sector Erase Suspend

(2)

1

Write

XXXX

B0

Program Suspend

(2)

Write

Sector Erase Resume

(2)

1

Write

XXXX

D0

Program Resume

(2)

Write

Product ID Entry

(5)

2

Write

XXXX

90

Read

AID

(6)

Read Status Register

2

Write

XXXX

70

Read

XXXX

SRD

(7)

Clear Status Register

1

Write

XXXX

50