HTRC110 데이터 시트보기 (PDF) - NXP Semiconductors.
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HTRC110 Datasheet PDF : 22 Pages
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NXP Semiconductors
HTRC110
HITAG reader chip
10.7 SET_CONFIG_PAGE
This command is used to set the amplifier and filter parameters (cutoff frequencies, gain
factors) and the different operation modes. P1 and P0 select one of four configuration
pages.
Table 10. SET_CONFIG_PAGE command
Bit No. 7 6 5 4 3 2 1 0 Remark
Command 0 1 P1 P0 D3 D2 01 D0 no response
Table 11. Config pages
Bit No.
P1 P0 D3
D2
D1
D0
Command/Page no.
SET_CONFIG_PAGE 0 0 0 GAIN1
GAIN0
FILTERH
FILTERL
SET_CONFIG_PAGE 1 0 1 PD_MODE PD
HYSTERESIS TXDIS
SET_CONFIG_PAGE 2 1 0 THRESET ACQAMP FREEZE1
FREEZ0
SET_CONFIG_PAGE 3 1 1 DIPSL1
DISSMART- FSEL1
COMP
FSEL0
Table 12. Bit initial conditions
Bit name
Description
FILTERL
main low pass cutoff frequency
FILTERH
main high pass cutoff frequency
GAIN0
GAIN1
TXDIS
amplifier_0 gain factor
amplifier_1 gain factor
disable coil driver
HYSTERESIS
data comparator hysteresis
PD
power down mode enable
PD_MODE
select power down mode
FREEZE0
FREEZE1
ACQAMP
THRESET
FSEL0
FSEL1
DISSMARTCOMP
facility to achieve fast setting times
facility to achieve fast setting times
store signal amplitude as reference for later
amplitude comparison
reset threshold generation of digitizer
clock frequency select LSB
clock frequency select MSB
disable smart comparator
DISPL1
disable low pass 1
Initial
condition
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0: fL = 3 kHz
1: fL = 6 kHz
0: fH = 40 Hz
1: fH = 160 Hz
0: gain0 = 16; 1: gain0 = 32
0: gain1 = 6.22; 1: gain1 = 31.5
0: coil driver active
1: coil driver inactive
0: hysteresis OFF
1: hysteresis ON
0: device active
1: device power down
0: idle mode
1: power down
see Table 13
see Table 13
see status bit AMPCOMP
00: 4 MHz, 01: 12 MHz
10: 8 MHz, 11: 16 MHz
0: smart comparator = ON
1: smart comparator = OFF
0: low pass = ON
1: low pass = OFF
037031
Product data sheet
PUBLIC
All information provided in this document is subject to legal disclaimers.
Rev. 3.1 — 9 February 2010
037031
© NXP B.V. 2010. All rights reserved.
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