參數(shù)資料
型號(hào): MFRC50001T
廠商: NXP Semiconductors N.V.
元件分類: 通信及網(wǎng)絡(luò)
英文描述: Highly integrated ISO-IEC 14443 A reader IC
封裝: MFRC50001T/0FE<SOT287-1 (SO32)|<<http://www.nxp.com/packages/SOT287-1.html<1<week 15, 2005,;
文件頁數(shù): 50/110頁
文件大?。?/td> 841K
代理商: MFRC50001T
MFRC500_33
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
PUBLIC
Rev. 3.3 — 15 March 2010
048033
50 of 110
NXP Semiconductors
MFRC500
Highly Integrated ISO/IEC 14443 A Reader IC
10.5.2.4
CollPos register
Bit position of the first bit-collision detected on the RF interface.
Table 53.
Bit
Symbol
Access
Table 54.
Bit
7 to 0
10.5.2.5
TimerValue register
Value of the timer.
Table 55.
Bit
Symbol
Access
Table 56.
Bit
7 to 0
10.5.2.6
CRCResultLSB register
LSB of the CRC coprocessor register.
Table 57.
Table 58.
Bit
7 to 0
CollPos register (address: 0Bh) reset value: 0000 0000b, 00h bit allocation
7
6
5
4
3
2
1
0
CollPos[7:0]
R
CollPos register bit descriptions
Symbol
Description
CollPos[7:0]
this register shows the bit position of the first detected collision in a
received frame.
Example:
00h indicates a bit collision in the start bit
01h indicates a bit collision in the 1
st
bit
...
08h indicates a bit collision in the 8
th
bit
TimerValue register (address: 0Ch) reset value: xxxx xxxxb, xxh bit allocation
7
6
5
4
TimerValue[7:0]
3
2
1
0
R
TimerValue register bit descriptions
Symbol
Description
TimerValue[7:0]
this register shows the timer counter value
CRCResultLSB register (address: 0Dh) reset value: xxxx xxxxb, xxh bit
allocation
7
6
5
Bit
Symbol
Access
4
3
2
1
0
CRCResultLSB[7:0]
R
CRCResultLSB register bit descriptions
Symbol
Description
CRCResultLSB[7:0]
gives the CRC register’s least significant byte value; only valid if
CRCReady = logic 1
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