PN5120A0HN/C1,518 NXP Semiconductors, PN5120A0HN/C1,518 Datasheet - Page 40

• Manufacturer Part Number: PN5120A0HN/C1,518
• Description: IC TRANSMISSION MOD 40-HVQFN
• Manufacturer: NXP Semiconductors

Specifications of PN5120A0HN/C1,518

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO14443-A, ISO14443-B
• Package / Case: 40-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
PN512
Product data sheet
COMPANY PUBLIC
9.2.2.8 RxSelReg
9.2.2.9 RxThresholdReg
Selects internal receiver settings.
Table 60.
Table 61.
Selects thresholds for the bit decoder.
Table 62.
Table 63.
Bit
7 to 6
5 to 0
Bit
7 to 4
3
2 to 0
Access
Rights
Access
Rights
Symbol
UartSel
RxWait
Symbol
MinLevel
-
CollLevel
RxSelReg register (address 17h); reset value: 84h, 10000100b
Description of RxSelReg bits
RxThresholdReg register (address 18h); reset value: 84h, 10000100b
Description of RxThresholdReg bits
r/w
r/w
7
7
All information provided in this document is subject to legal disclaimers.
UartSel
Rev. 3.6 — 10 March 2011
r/w
r/w
Description
Defines the minimum signal strength at the decoder input that shall be
accepted. If the signal strength is below this level, it is not evaluated.
Reserved for future use.
Defines the minimum signal strength at the decoder input that has to be
reached by the weaker half-bit of the Manchester-coded signal to
generate a bit-collision relatively to the amplitude of the stronger half-bit.
6
6
MinLevel
Description
Selects the input of the contactless UART
Value
00
01
10
11
After data transmission, the activation of the receiver is delayed for
RxWait bit-clocks. During this ‘frame guard time’ any signal at pin RX
is ignored. This parameter is ignored by the Receive command. All
other commands (e.g. Transceive, Autocoll, MFAuthent) use this
parameter. Depending on the mode of the PN512, the counter starts
different. In Passive Communication mode the counter starts with the
last modulation pulse of the transmitted data stream. In Active
Communication mode the counter starts immediately after the external
RF field is switched on.
111336
r/w
r/w
5
5
Description
Constant Low
Envelope signal at SIGIN
Modulation signal from the internal analog part
Modulation signal from SIGIN pin. Only valid for transfer
speeds above 424 kbit
r/w
r/w
4
4
RFU
r/w
3
3
0
RxWait
r/w
r/w
2
2
Transmission module
CollLevel
© NXP B.V. 2011. All rights reserved.
r/w
r/w
1
1
PN512
40 of 125
r/w
r/w
0
0