HCS473_13 Datasheet, PDF (36/68 Pages) Microchip Technology – KEELOQ® 3-Axis Transcoder

HCS473
TABLE 3-6: CONFIGURATION SUMMARY
Symbol
Address: Bits
Description⁽¹⁾
Reference
Section
GSEL
38: - - - - 3 2 - - Guard Time Select ^{( 1)}
Value
Time (ms)
3.1.4.14
RFBSL
38: - - - - - - 1 0 RF Transmission Baud Rate
Select ^{( 1)}
LFDEMOD 39: 7 - - - - - - - LF Demodulator
00₂
01₂
10₂
11₂
Value
00₂
01₂
10₂
11₂
0 - Normal
0.0
6.4
51.2
102.4
TE (s)
100
200
400
800
1 - Demod
3.1.4.13
3.2.1.2
TPLS
PRD
LPRL
39: - - - - 3 - - - Transponder Preamble Length
39: - - - - - 2 - - Preamble Duty Cycle ^{( 1)}
39: - - - - - - 1 - Long Preamble Length ^{( 1)}
0 - Normal
0 - 33%
0 - 75ms
1 - Short
1 - 50%
1 - 100ms
3.2.1.1
3.1.4.19
3.1.4.18
LPRE
39: - - - - - - - 0 Long Preamble Enable
0 - Disable 1 - Enable
3.1.4.17
SKIPACK 3A: 7 - - - - - - - Skip First ACK
0 - Disable 1 - Enable
3.2.1.8
RFRSP
3A: - 6 - - - - - - RF Response
0 - Disable 1 - Enable
3.2.1.7
LCRSP
3A: - - 5 - - - - - LC Response
0 - Disable 1 - Enable
3.2.1.7
DAMP
3A: - - - 4 - - - - Intelligent LC Damping
0 - Disable 1 - Enable
3.2.1.6
PXMA
3A: - - - - 3 - - - Proximity Activation
0 - Disable 1 - Enable
3.2.1.5
ACOL
3A: - - - - - 2 - - Anticollision
0 - Disable 1 - Enable
3.2.1.4
LFBSL
3A: - - - - - - 1 0 LF Transmission Baud Rate
Select ^{( 1)}
END 3F 01011010 Unused, always set = 5A
Value
00₂
01₂
10₂
11₂
TE (s)
100
200
400
800
3.2.1.3
Note 1: All Timing values vary ±10%. Industrial temperature devices operating at cold and 3.5V < VDD < 5.5V vary
+10%, -20%.
2: Voltage thresholds should be ±250 mV for the low voltage range and ±400 mV for the high voltage range.
DS40035D-page 36
Preliminary
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