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| 型號： | MFRC53101T |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 通信及網(wǎng)絡(luò) |
| 英文描述： | ISO-IEC 14443 reader IC |
| 封裝： | MFRC53101T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1<week 51, 2004,;MFRC53101T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html< |
| 文件頁數(shù)： | 42/116頁 |
| 文件大?。?/td> | 862K |
| 代理商： | MFRC53101T |
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MFRC531_34
NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.4 — 26 January 2010
056634
42 of 116
NXP Semiconductors
MFRC531
ISO/IEC 14443 reader IC
Table 35.
Multiplexed
address bus type
Paging mode
Linear addressing
10.2 Register bit behavior
Bits and flags for different registers behave differently, depending on their functions. In
principle, bits with same behavior are grouped in common registers.
Table 36
describes
the function of the Access column in the register tables.
Table 36.
Abbreviation
R/W
Multiplexed address bus: assembling the register address
UsePage
Select
1
PageSelect2 PageSelect1
0
AD5
Register address
PageSelect0
AD3
AD2
AD2
AD1 AD0
AD1 AD0
AD4
Behavior and designation of register bits
Behavior
read and write
Description
These bits can be read and written by the microprocessor.
Since they are only used for control, their content is not
influenced by internal state machines.
Example:
TimerReload register may be read and written by
the microprocessor. It will also be read by internal state
machines but never changed by them.
These bits can be read and written by the microprocessor.
Nevertheless, they may also be written automatically by
internal state machines.
Example:
the Command register changes its value
automatically after the execution of the command.
These registers hold flags which have a value determined by
internal states only.
Example:
the ErrorFlag register cannot be written externally
but shows internal states.
These registers are used for control only. They may be written
by the microprocessor but cannot be read. Reading these
registers returns an undefined value.
Example:
The TestAnaSelect register is used to determine the
signal on pin AUX however, it is not possible to read its
content.
D
dynamic
R
read only
W
write only
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