XE1202A データシートの表示（PDF） - Semtech Corporation

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XE1202A

433 MHz / 868 MHz / 915 MHz Low-Power, Integrated UHF Transceiver

Semtech Corporation 

XE1202A TrueRF™

5.2.3 DataOut register

Name

Bits

DataOut_RSSI 7-6

DataOut_FEI

7-0

When

RTParam_Fsel = 0

DataOut_FEI

5-4

When

RTParam_Fsel = 1

Byte Address

00101

00101

00101

Description

RSSI output:

0 0 -> lowest level

0 1 -> 2nd level

1 0 -> 3rd level

1 1 -> highest level

FEI output:

Output of the up/down counter in

2’s-complement representation

MSB = bit 7

FEI output:

0 0 -> frequency OK

1 0 -> frequency too low

1 1 -> frequency too high

Table 14: DataOut register

5.2.4 ADParam configuration register

Name

Bits

ADParam_Pattern 7

Byte Address

00110

ADParam_Psize 6-5

00110

ADParam_Ptol

4-3

00110

ADParam_Clkfreq 2-1

00110

ADParam_IQA

0

ADParam_Res1 7

ADParam_Invert 6

00110

00111

00111

© Semtech 2006

20

Description

Pattern recognition enable:

0 -> Disabled

1 -> Enabled

Size of reference pattern recognition

word:

0 0 -> 8 bits

0 1 -> 16 bits

1 0 -> 24 bits

1 1 -> 32 bits

Number of tolerated errors for the

pattern recognition:

0 0 -> 0 error

0 1 -> 1 error

1 0 -> 2 errors

1 1 -> 3 errors

Frequency of CLKOUT:

0 0 -> 1.22 MHz (div. ratio: 32)

0 1 -> 2.44 MHz (div. ratio: 16)

1 0 -> 4.87 MHz (div. ratio: 8)

1 1 -> 9.75 MHz (div. ratio: 4)

IQ amplifiers enable:

0 -> Disabled

1 -> Enabled

Reserved. Should be set to “0”

Inversion of the Rx output data:

0 -> non-inverted data

1 -> inverted data

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