PN5120A0HN1/C2,151 NXP Semiconductors, PN5120A0HN1/C2,151 Datasheet - Page 67

• 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
10.3.2 Selection of the transfer speeds
The internal UART interface is compatible to an RS232 serial interface.
Table 144 “Selectable transfer speeds”
and relevant register settings.
The resulting transfer speed error is less than 1.5% for all described transfer speeds.
The default transfer speed is 9.6 kbit.
To change the transfer speed, the host controller has to write a value for the new transfer
speed to the register SerialSpeedReg. The bits BR_T0 and BR_T1 define factors to set
the transfer speed in the SerialSpeedReg.
Table 143 “Settings of BR_T0 and BR_T1”
Table 143. Settings of BR_T0 and BR_T1
Table 144. Selectable transfer speeds
The selectable transfer speeds as shown in
calculated according to the following formulas:
Remark: transfer speeds above 1228.8 k are not supported.
range BR_T1
factor BR_T0
if BR_T0=0: transfer speed = 27.12 MHz/(BR_T1+1)
if BR_T0>0: transfer speed = 27.12 MHz/(BR_T1 +33)/2^(BR_T0 -1)
BR_T0
Transfer Speed [bit/s]
1228.8 k
115.2 k
230.4 k
460.8 k
921.6 k
14.4 k
19.2 k
38.4 k
57.6 k
128 k
7.2 k
9.6 k
1 to 32
0
1
Rev. 3.4 — 8 September 2009
33 to 64 33 to 64 33 to 64 33 to 64 33 to 64 33 to 64 33 to 64
1
1
decimal
250
235
218
203
171
154
122
116
90
58
28
21
SerialSpeedReg
2
2
describes examples for different transfer speeds
describes the settings of BR_T0 and BR_T1.
Table 144 “Selectable transfer speeds”
3
4
heximal
DA
CB
EB
AB
1C
FA
9A
7A
5A
3A
74
15
4
8
Transfer Speed Accuracy
16
5
Transmission Module
© NXP B.V. 2010. All rights reserved.
-0.25%
-0.25%
-0.25%
-0.25%
-0.06%
-0.25%
-0.25%
0.32%
0.32%
0.32%
1.45%
0.32%
32
6
PN512
67 of 131
PUBLIC
are
64
7