SL3ICS1002F7AF datasheet(38/51 Pages) NXP

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139037

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Product data sheet

COMPANY PUBLIC

Rev. 3.7 — 9 October 2012

139037

38 of 51

NXP Semiconductors

SL3ICS1002/1202

UCODE G2XM and G2XL

14.12.5 Calibrate

After execution of the custom Calibrate command the G2X will continuously backscatter

the user memory content in an infinite loop. The G2XL will continuously backscatter zeros.

This command can be used for frequency spectrum measurements. Calibrate can only be

executed from the Secure state with an non-zero Access Password set otherwise the

command will be ignored.

The Calibrate command includes a CRC-16 calculated over the whole command, the

handle and a prepended frame-sync.

[1]

G2XM

[2]

G2XL

Table 26.

Calibrate command

Command

RN16

CRC-16

# of bits

description

11100000 00000101

handle

Table 27.

G2X reply to a successful Calibrate command

Header

Infinite repeat

# of bits

512 (looped)

description

User memory data[1]

zeros[2]

Table 28.

Calibrate command-response table

Starting State

Condition

Response

Next State

ready

all

–

ready

arbitrate, reply,

acknowledged

all

–

arbitrate

secured

nonzero access

password

Backscatter infinite

access password is

zero

–

secured

killed

all

–

killed

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