PN5120A0HN/C1 NXP Semiconductors, PN5120A0HN/C1 Datasheet - Page 37

• Manufacturer Part Number: PN5120A0HN/C1
• Description: Transmission Module 40-Pin HVQFN EP T/R
• Manufacturer: NXP Semiconductors

Specifications of PN5120A0HN/C1

• Package: 40HVQFN EP
• Operating Temperature: -30 to 85 °C

NXP Semiconductors
PN512
Product data sheet
COMPANY PUBLIC
9.2.2.6 TxAutoReg
Controls the settings of the antenna driver.
Table 56.
Table 57.
Bit
7
6
5
4
3
2
1
0
Access
Rights
AutoRF
Symbol
AutoRFOFF
Force100ASK Set to logic 1, Force100ASK forces a 100% ASK modulation
AutoWakeUp
-
CAOn
InitialRFOn
Tx2RFAutoEn Set to logic 1, the driver Tx2 is switched on after the external RF field
Tx1RFAutoEn Set to logic 1, the driver Tx1 is switched on after the external RF field
TxAutoReg register (address 15h); reset value: 00h, 00000000b
Description of TxAutoReg bits
OFF
r/w
7
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Force100
ASK
Rev. 3.6 — 10 March 2011
r/w
6
Description
Set to logic 1, all active antenna drivers are switched off after the last
data bit has been transmitted as defined in the NFCIP-1.
independent of the setting in register ModGsPReg.
Set to logic 1, the PN512 in soft Power-down mode will be started by
the RF level detector.
Reserved for future use.
Set to logic 1, the collision avoidance is activated and internally the
value n is set in accordance to the NFCIP-1 Standard.
Set to logic 1, the initial RF collision avoidance is performed and the bit
InitialRFOn is cleared automatically, if the RF is switched on.
Note: The driver, which should be switched on, has to be enabled by
bit Tx2RFAutoEn or bit Tx1RFAutoEn.
is switched off according to the time TADT. If the bits InitialRFOn and
Tx2RFAutoEn are set to logic 1, Tx2 is switched on if no external RF
field is detected during the time TIDT.
Note: The times TADT and TIDT are defined in the NFC IP-1 standard
(ISO/IEC 18092).
is switched off according to the time TADT. If the bit InitialRFOn and
Tx1RFAutoEn are set to logic 1, Tx1 is switched on if no external RF
field is detected during the time TIDT.
Note: The times TADT and TIDT are defined in the NFC IP-1 standard
(ISO/IEC 18092).
WakeUp
111336
Auto
r/w
5
RFU
4
0
CAOn
r/w
3
InitialRF
On
r/w
2
Transmission module
Tx2RFAut
oEn
r/w
1
© NXP B.V. 2011. All rights reserved.
PN512
Tx1RFAuto
37 of 125
r/w
En
0