CLRC632 Datasheet, PDF (44/163 Pages) NXP Semiconductors – Multiple Protocol Contactless Reader IC

Philips Semiconductors
Multiple Protocol Contactless Reader IC
5.2.4 PAGE 3: RECEIVER AND DECODER CONTROL
5.2.4.1 Page Register
Selects the register page. See 5.2.1.1 Page Register.
5.2.4.2 RxControl1 Register
controls receiver behaviour.
Name: RxControl1
Address: 0x19
Product Specification Rev. 3.0; May 2003
CL RC632
Reset value: 01110011, 0x73
Access
Rights
7
6
5
SubCPulses
r/w
r/w
r/w
4
3
ISO Selection
r/w
r/w
2
LPOff
r/w
1
0
Gain
r/w
r/w
Description of the bits
Bit
Symbol
Function
7-5 SubCPulses Defines the number of subcarrier pulses per Bit
000: 1 Pulse
001: 2 Pulses
010: 4 Pulses
011: 8 Pulses
ISO14443A&B
100: 16 Pulses
I•CODE1 , ISO15693
101: RFU
110: RFU
111: RFU
4-3 ISO Selection 00: RFU
10: ISO 14443 A&B
01: I•CODE1 , ISO15693
11: RFU
2
LPOff
Switches off a LowPassFilter at the internal amplifier.
1-0
Gain
This register defines the receivers signal voltage gain factor:
00: 20 dB
01: 24 dB
10: 31 dB
11: 35 dB
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