XE1205SKC433XE1 Semtech, XE1205SKC433XE1 Datasheet - Page 33

• Manufacturer Part Number: XE1205SKC433XE1
• Description: KIT STARTER FOR XE1205 433MHZ
• Manufacturer: Semtech
• Series: TrueRF™r
• Type: Transceiver, ISMr

Specifications of XE1205SKC433XE1

• Frequency: 433MHz
• For Use With/related Products: XE1205 (433MHz)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Name
Ptol(1:0)
FEI_out(15:8)
FEI_out(7:0)
7.2.6
This register holds the user supplied reference pattern of 8, 16, 24, or 32 bits (see the RXParam_Psize(1:0) parameter).
The first byte of this pattern is always stored in the byte at address 13. If used, the 2
3
Comparing the demodulated data, the first bit received is compared with bit 7 (the MSB) of byte address 13. The last bit
received is compared with bit 0 (the LSB) in the Pattern register.
Table 22 provides an example of pattern recognition with a 32-bit pattern.
Byte Address
13
Bit 7
10010011
101 10010011
Table 23 provides an example of pattern recognition with an 8-bit pattern.
Byte Address
13
Bit 7
10010011
101 10010011
previous bits from
demodulator
© Semtech 2008
rd
byte at address 15 and finally the 4
Name
Reg_pattern(31:24)
Reg_pattern(23:16)
Reg_pattern(15:8)
Reg_pattern(7:0)
Pattern register
Bit 0
Bit 0
Bits
1-0
7-0
7-0
Byte Address
14
Bit 7
10101010
10101010
previous bits from
demodulator
Byte Address
14
Bit 7
Xxxxxxxx
last bit received
Address
10
11
12
Bits
7-0
7-0
7-0
7-0
th
Table 22: Pattern recognition example (32 bits)
Address
13
14
15
16
Table 23: Pattern recognition example (8 bits)
byte at 16. The MSB bit of the reference pattern is always bit 7 of address 13.
Bit 0
Bit 0
Table 20: RXParam configuration register
RW
r/w
r
r
Table 21: Pattern register
Description
Number of tolerated errors for the pattern recognition:
FEI output
00 -> 0 error
01 -> 1 error
10 -> 2 errors
11 -> 3 errors
in a 2’s complement representation
RW
r/w
Byte Address
15
Bit 7
10010011
10010011
Byte Address
15
Bit 7
Xxxxxxxx
Description
1
2
3
4
33
st
nd
rd
th
byte of the reference pattern
byte of the reference pattern
byte of the reference pattern
byte of the reference pattern
Bit 0
Bit 0
nd
Byte Address
16
Bit 7
10101010
10101010
last bit received
Byte Address
16
Bit 7
Xxxxxxxx
byte is stored at address 14, the
XE1205
Bit 0
Bit 0
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