參數(shù)資料
型號(hào)： MFRC52201HN1
廠商： NXP Semiconductors N.V.
元件分類： 通信及網(wǎng)絡(luò)
英文描述： Contactless reader IC
封裝： MFRC52201HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html<1<Always Pb-free,;MFRC52201HN1<SOT617-1 (HVQFN32)|<<http://www.nxp.com/packages/SOT617-1.html&
文件頁數(shù)： 62/92頁
文件大?。?/td> 691K
代理商： MFRC52201HN1
MFRC522_35
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.5 — 21 June 2010
112135
62 of 92
NXP Semiconductors
MFRC522
Contactless reader IC
Table 124. TestPinEnReg register bit descriptions
Bit
Symbol
Value
7
RS232LineEn 0
6 to 1 TestPinEn
[5:0]
9.3.4.5
TestPinValueReg register
Defines the HIGH and LOW values for the test port D1 to D7 when it is used as I/O.
Table 125. TestPinValueReg register (address 34h); reset value: 00h bit allocation
Bit
7
6
5
Symbol
UseIO
Access
R/W
Table 126. TestPinValueReg register bit descriptions
Bit
Symbol
Value Description
7
UseIO
1
9.3.4.6
TestBusReg register
Shows the status of the internal test bus.
Table 127. TestBusReg register (address 35h); reset value: xxh bit allocation
Bit
7
6
5
Symbol
Access
Description
serial UART lines MX and DTRQ are disabled
enables the output driver on one of the data pins D1 to D7 which
outputs a test signal
Example:
setting bit 1 to logic 1 enables pin D1 output
setting bit 5 to logic 1 enables pin D5 output
Remark:
If the SPI is used, only pins D1 to D4 can be used. If the
serial UART interface is used and the RS232LineEn bit is set to
logic 1 only pins D1 to D4 can be used.
reserved for future use
-
0
reserved
-
4
3
2
1
0
TestPinValue[5:0]
R/W
reserved
-
enables the I/O functionality for the test port when one of the serial
interfaces is used
the input/output behavior is defined by value TestPinEn[5:0] in the
TestPinEnReg register
the value for the output behavior is defined by TestPinValue[5:0]
defines the value of the test port when it is used as I/O and each
output must be enabled by TestPinEn[5:0] in the TestPinEnReg
register
Remark:
Reading the register indicates the status of pins D6 to D1
if the UseIO bit is set to logic 1. If the UseIO bit is set to logic 0, the
value of the TestPinValueReg register is read back.
reserved for future use
6 to 1 TestPinValue
[5:0]
-
0
reserved
-
4
TestBus[7:0]
R
3
2
1
0
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