24LC00-SLASHST datasheet(9/22 Pages) MICROCHIP

9 / 22 page

 2004 Microchip Technology Inc.

DS21226E-page 9

24LCS61/24LCS62

TABLE 5-1:

COMMAND SUMMARY TABLE

Command

Result if Device Has Not Yet

Been Assigned an ID Byte

Result if Device Has Already Been

Assigned an ID Byte

Assign Address

command

If device wins arbitration, then ID

byte will become xxh. If device

loses arbitration, then ID byte will

revert back to 00h.

Device will not acknowledge command.

Clear Address

command

Device will remain with ID byte set

to 00h.

Device ID byte will revert back to 00h and will then

acknowledge Assign Address commands.

Read or Write

command with

ID byte set to 00h

Since the default ID byte for the

device is 00h, the device will

execute the command.

Device will acknowledge the control byte, but it will not

acknowledge any further bytes and will not respond to

the command.

Read or Write

command with

ID byte set to xxh

(other than 00h)

Device will acknowledge the

control byte, but it will not acknowl-

edge any further bytes and will not

respond to the command.

If the device ID byte matches the ID byte in the command

(xxh), the device will execute the command. If the device

ID byte does not match the ID byte in the command, then

the device will acknowledge the control byte, but it will

not acknowledge any further bytes and will not respond

to the command.

Set Write-Protect

command with

ID byte set to 00h

Since the default ID address for the

device is 00h, the device will

execute the command.

Device will acknowledge the control byte, but it will not

acknowledge any further bytes and will not respond to

the command.

Set Write Protection

command with

ID byte set to xxh

(other than 00h)

Device will acknowledge the

control byte, but it will not acknowl-

edge any further bytes and will not

respond to the command.

If the device ID byte matches the ID byte in the command

(xxh), the device will execute the command. If the device

ID byte does not match the ID byte in the command, then

the device will acknowledge the control byte, but it will

not acknowledge any further bytes and will not respond

to the command. Note: Once this command has been

executed successfully for a device, the device will no

longer acknowledge any part of this command again.

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