SL2ICS50 datasheet(19/28 Pages) NXP

19 / 28 page

136430

Product data sheet

Rev. 3.0 — 14 March 2007

19 of 28

NXP Semiconductors

SL2 ICS50/SL2 ICS51

I•CODE SLI-L/I•CODE SLI-L HC

PUBLIC

8.1.3.11 Lock EAS

Command Code = A4h

This command locks the current state of the EAS mode and the EAS ID. If the EAS mode

is password protected the EAS password has to be transmitted before with the Set

Password command.

Table 38.

Request format

SOF

Flags

Lock EAS

IC Mfg code

UID

CRC16

EOF

8 bits

64 bits

optional

16 bits

8 bits

Table 39.

Response format when Error_flag is set

SOF

Flags

Error code

CRC16

EOF

8 bits

16 bits

Table 40.

Response format when Error_flag is NOT set

SOF

Flags

CRC16

EOF

8 bits

16 bits

8.1.3.12 EAS Alarm

Command Code = A5h

The EAS Alarm command can be used in the following three configurations:

• Option flag is set to 0:

EAS ID Mask length and EAS ID value shall not be transmitted

If the EAS mode is set the EAS response is returned from the

I•CODE SLI-L/I•CODE SLI-L HC IC. This configuration is compliant to the EAS

command of the I•CODE SLI-L/I•CODE SLI-L HC IC.

• Option flag is set to 1:

Within the command the EAS ID Mask Length has to be transmitted to identify how

many bits of the following EAS ID value are valid (multiple of 8-bit). Only that

I•CODE SLI-L/I•CODE SLI-L HC ICs will respond with the EAS response which have

stored the corresponding data in the EAS ID configuration (selective EAS) and if the

EAS Mode is set.

If the EAS ID Mask length is set to 0, the I•CODE SLI-L/I•CODE SLI-L HC IC will

answer with its EAS ID.

Table 41.

Request format

SOF

Flags EAS

Alarm

IC Mfg

code

UID

EAS ID Mask

Length

EAS ID Value

CRC16 EOF

8 bits

64 bits

optional

8 bits optional 0 to 16 bits

multiple of 8 bits

optional

16 bits

8 bits

If an error is detected the I•CODE SLI-L/I•CODE SLI-L HC IC remains silent.

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