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): 62/110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
62 of 110
NXP Semiconductors
MFRC500
Highly Integrated ISO/IEC 14443 A Reader IC
10.5.6.4
TimerControl register
Selects start and stop conditions for the timer.
Table 109. TimerControl register (address: 2Bh) reset value: 0000 0110b, 06h bit allocation
Bit
7
6
5
4
3
Symbol
0000
TStopRxEnd
Access
R/W
R/W
Table 110. TimerControl register bit descriptions
Bit
Symbol
7 to 4 0000
3
TStopRxEnd
10.5.6.5
TimerReload register
Defines the preset value for the timer.
Table 111. TimerReload register (address: 2Ch) reset value: 0000 1010b, 0Ah bit allocation
Bit
7
6
5
Symbol
TReloadValue[7:0]
Access
Table 112. TimerReload register bit descriptions
Bit
Symbol
7 to 0 TReloadValue[7:0]
2
1
0
TStopRxBegin
R/W
TStartTxEnd
R/W
TStartTxBegin
R/W
Value
0
1
0
1
0
1
Description
these values must not be changed
the timer automatically stops when data reception ends
the timer is not influenced by this condition
the timer automatically stops when the first valid bit is received
the timer is not influenced by this condition
the timer automatically starts when data transmission ends. If
the timer is already running, the timer restarts by loading
TReloadValue[7:0] into the timer.
the timer is not influenced by this condition
the timer automatically starts when the first bit is transmitted. If
the timer is already running, the timer restarts by loading
TReloadValue[7:0] into the timer.
2
TStopRxBegin
1
TStartTxEnd
0
1
0
TStartTxBegin
0
the timer is not influenced by this condition
4
3
2
1
0
R/W
Description
on a start event, the timer loads the TReloadValue[7:0] value.
Changing this register only affects the timer on the next start event. If
TReloadValue[7:0] is set to logic 0 the timer cannot start.
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