PN5120A0HN1/C2,151 NXP Semiconductors, PN5120A0HN1/C2,151 Datasheet - Page 76

• Manufacturer Part Number: PN5120A0HN1/C2,151
• Description: IC TRANSMISSION MOD 32-HVQFN
• Manufacturer: NXP Semiconductors

Specifications of PN5120A0HN1/C2,151

• Rf Type: Read / Write
• Frequency: 13.56MHz
• Features: ISO14443-A, ISO14443-B
• Package / Case: 32-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

NXP Semiconductors
111334
Product data sheet
Fig 25. I
2
C HS mode protocol frame
10.4.12 Switching from F/S to HS mode and Vice Versa
After reset and initialization, the PN512 is in Fast mode (which is in effect F/S mode as
Fast mode is downward compatible to Standard mode). The connected PN512 recognizes
the “S 00001XXX A” sequence and switches its internal circuitry from the Fast mode
setting to the HS mode setting.
Following actions are taken:
System configurations having no other I
additional possibility to switch to HS mode exists. By setting the bit I
Status2Reg to 1, the HS mode is entered. Setting this bit to 1 changes the HS mode
permanent meaning that sending the master code is no longer necessary. This is not
according the specification and should only be used when no other devices are on the
bus. Spikes on the I
1. Adapt the SDA and SCL input filters according to the spike suppression requirement
2. Adapt the slope control of the SDA output stages.
in HS mode.
2
C lines shall be avoided because of the reduced spike suppression.
Rev. 3.4 — 8 September 2009
2
C devices involved in the communication an
Transmission Module
2
CForceHS in register
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