mfrc531 NXP Semiconductors, mfrc531 Datasheet - Page 71

• Manufacturer Part Number: mfrc531
• Description: Iso/iec 14443 Reader Ic
• Manufacturer: NXP Semiconductors

NXP Semiconductors
MFRC531_34
Product data sheet
PUBLIC
10.5.8.1 Page register
10.5.8.2 Reserved register 39h
10.5.8.3 TestAnaSelect register
10.5.8 Page 7: Test control
Selects the page register; see
Table 121. Reserved register (address: 39h) reset value: xxxx xxxxb, xxh bit allocation
Remark: This register is reserved for future use.
Selects analog test signals.
Table 122. TestAnaSelect register (address: 3Ah) reset value: 0000 0000b, 00h bit allocation
Table 123. TestAnaSelect bit descriptions
Bit
Symbol
Access
Bit
Symbol
Access
Bit
7 to 4
3 to 0
Symbol
0000
TestAnaOutSel[4:0]
W
7
x
7
Rev. 3.4 — 26 January 2010
W
6
6
x
0000
W
Value
-
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
056634
Section 10.5.1.1 “Page register” on page
W
5
x
5
selects the internal analog signal to be routed to pin
Description
these values must not be changed
AUX. See
information. The settings are as follows:
VMID
Vbandgap
VRxFollI
VRxFollQ
VRxAmpI
VRxAmpQ
VCorrNI
VCorrNQ
VCorrDI
VCorrDQ
VEvalL
VEvalR
VTemp
reserved
reserved
reserved
W
4
4
x
Section 15.2.2 on page 103
W
3
x
3
TestAnaOutSel[4:0]
W
ISO/IEC 14443 reader IC
2
x
2
W
MFRC531
© NXP B.V. 2010. All rights reserved.
48.
for detailed
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1
x
1
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0
x
0