24CS512 datasheet(19/66 Pages) MICROCHIP

부품명	24CS512

상세설명	512-Kbit, 3.4MHz I2C Serial EEPROM with 128-Bit Serial Number and Enhanced Software Write Protection

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DS20005769C-page 19

24CS512

6.6.2

ENHANCED SOFTWARE WRITE

PROTECTION MODE

When the EWPM bit is set to logic ‘1’, the 24CS512 is

configured for a versatile software write protection

scheme by segmenting the EEPROM array into eight

independent 64-Kbit zones (see Table 6-2). Each of the

eight zones can be write-protected by programming the

corresponding bit in the Configuration register. The

protection behavior can be made permanent by locking

the Configuration register (see Section 9.5 “Locking

the Configuration Register” for additional details).

Note:

Enhanced software write protection does

not affect write operations to the Security

and Configuration registers.

TABLE 6-2:

24CS512 ZONE PROTECTION CONTROL

Configuration Register Bit

Protected Zone

Protected Address Range

SWP7

E000h-FFFFh

SWP6

C000h-DFFFh

SWP5

A000h-BFFFh

SWP4

8000H-9FFFh

SWP3

6000h-7FFFh

SWP2

4000h-5FFFh

SWP1

2000h-3FFFh

SWP0

0000h-1FFFh

24CS512 데이터시트(PDF) 19 Page - Microchip Technology