CLRC632 Datasheet, PDF (42/163 Pages) NXP Semiconductors – Multiple Protocol Contactless Reader IC

Philips Semiconductors
Multiple Protocol Contactless Reader IC
5.2.3.6 ModWidth Register
selects the width of the modulation pulse.
Name: ModWidth
Address: 0x15
Product Specification Rev. 3.0; May 2003
CL RC632
Reset value: 00010011, 0x13
7
6
5
4
3
2
1
0
ModWidth
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Rights
Description of the bits
Bit
Symbol
7-0
ModWidth
Function
This register defines the width of the modulation pulse according to
T_mod = 2⋅(ModWidth +1) / fc.
5.2.3.7 ModWidthSOF Register
Name: ModWidthSOF
Address: 0x16
Reset value: 00111111, 0x3F
7
6
5
4
3
2
1
0
ModWidthSOF
Access
r/w
r/w
r/w
r/w
r/w
r/w
r/w
r/w
Rights
Description of the bits
Bit
Symbol
Function
7-0 ModWidthSOF This register defines the width of the modulation pulse for SOF
T_mod = 2⋅(ModWidth +1) / fc .
Register setting:
MIFARE® & ISO14443: 0x3F(Modulation width SOF: 9.44µs).
I•CODE1 Standard Mode: 0x3F (Modulation width SOF: 9.44µs).
I•CODE1 Fast Mode: 0x73 (Modulation width SOF: 18.88µs).
ISO 15693: 0x3F (Modulation width SOF: 9.44µs).
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