AT24MAC402 ATMEL [ATMEL Corporation], AT24MAC402 Datasheet - Page 14

• Manufacturer Part Number: AT24MAC402
• Description: I2C-Compatible (2-wire) 2-Kbit Serial EEPROM
• Manufacturer: ATMEL [ATMEL Corporation]

Table 7-4.
Read PSWP
Read PSWP
Read RSWP
Read RSWP
Clear RSWP
Clear RSWP
Command
Set PSWP
Set PSWP
Set RSWP
Set RSWP
1010
1010
WP Connected to V
R/W
Bit
W
W
W
W
W
W
W
R
R
R
R
R
Register PSWP
Not Programmed
Not Programmed
Not Programmed
Write Protect
Permanent
Programmed
Programmed
Programmed
X
X
X
X
X
X
CC
Not Programmed
Not Programmed
Write Protect
Programmed
Programmed
Reversible
Register
RSWP
X
X
X
X
X
X
X
X
WP Connected to V
Response
Device
No ACK
No ACK
No ACK
No ACK
No ACK
from
ACK
ACK
ACK
ACK
ACK
ACK
ACK
CC
Atmel AT24MAC402/602 [DATASHEET]
Action from Device
Read array.
Device is write protected.
STOP – Indicates pErmanent Write Protect Register is
programmed.
Data read out is undefined. Indicates PSWP Register is
not programmed.
STOP – Indicates Permanent Write Protect Register is
programmed.
Cannot program write protect registers.
STOP – Indicates Reversible Write Protect Register is
programmed.
Data read out is undefined. Indicates RSWP Register is
not programmed.
STOP – Indicates Reversible Write Protect Register is
programmed.
Cannot program write protect registers.
STOP – Indicates Permanent Write Protect Register is
programmed.
Cannot write to write protect registers.
8807A–SEEPR–6/12
14