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MFRC522 Datasheet(PDF) 38 Page - NXP Semiconductors

Part # MFRC522
Description  Contactless Reader IC
PDF  109 Pages
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Manufacturer  NXP [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo NXP - NXP Semiconductors

MFRC522 Datasheet(HTML) 38 Page - NXP Semiconductors

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© NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 3.2 — 22 May 2007
38 of 109
NXP Semiconductors
MFRC522
Contactless Reader IC
9.2.3.11
TReloadReg
Describes the 16 bit long timer reload value.
Remark: The Reload value is split into two 8-bit registers.
00
00
Table 95:
TReloadReg (Higher bits) register (address 2Ch); reset value: 00h
Bit
7
6
5
4
3
2
1
0
Symbol
TReloadVal_Hi
Access
Rights
r/w
Table 96:
Description of higher TReloadReg bits
Bit
Symbol
Description
7 to 0
TReloadVal_Hi Defines the higher 8 bits for the TReloadReg.
With a start event the timer loads the TReloadVal. Changing this
register affects the timer only at the next start event.
Table 97:
TReloadReg (Lower bits)register (address 2Dh); reset value: 00h
Bit
7
6
5
4
3
2
1
0
Symbol
TReloadVal_Lo
Access
Rights
r/w
Table 98:
Description of lower TReloadReg bits
Bit
Symbol
Description
7 to 0
TReloadVal_Lo Defines the lower 8 bits for the TReloadReg.
With a start event the timer loads the TReloadVal. Changing this
register affects the timer only at the next start event.



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