14

AT49LL080

3273C–FLASH–5/03

Notes:

1. X = Any valid address within the device.

2. The sector must 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 11).

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 11.

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

7. SRD = Data Read from status register.

Table 10. General-purpose Input Registers

Bit

Function

7:5

Reserved

4

GPI[4]

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

3

GPI[3]

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

2

GPI[2]

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

1

GPI[1]

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

0

GPI[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

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)

D

OUT

Read Status Register

2

Write

XXXX

70

Read

XXXX

SRD

(7)

Clear Status Register

1

Write

XXXX

50