參數(shù)資料
型號(hào): CLRC632
廠商: NXP Semiconductors N.V.
英文描述: Multiple Protocol Contactless Reader IC
中文描述: 多協(xié)議非接觸式讀卡器IC
文件頁數(shù): 89/163頁
文件大小: 948K
代理商: CLRC632
Philips Semiconductors
Product Specification Rev. 3.0; May 2003
Multiple Protocol Contactless Reader IC
CL RC632
89
Confidential
9.2.4
STATUS OF THE TIMER UNIT
The
TRunning
bit in the
SecondaryStatus
Register shows the timer’s current status. Any configured start
event starts the timer at the
TReloadValue
and changes the status flag
TRunning
to 1, any configured stop
event stops the timer and sets the status flag
TRunning
back to 0. As long as status flag
TRunning
is set to
1, the
TimerValue Register
changes with the next timer unit clock.
The actual timer unit content can be read directly via the
TimerValue Register
.
9.2.5
TIMESLOTPERIOD
For sending of ICODE1-Quit-Frames it is necessary to generat a exact chronological relation to the begin of
the command frame.
Is
TimeSlotPeriod
> 0, with the end of command transmission the TimeSlotPeriod starst.
If there are Data in the FIFO after reaching the end of TimeSlotPeriod, these data were sent at that moment.
If the FIFO is empty nothing happens.
As long as the contend of TimeSlotPeriod is > 0 the counter for the TimeSlotPeriod will start automatically
after reaching the end.
This allows a exact time relation to the end (as well as to the beginning) of the command frame for the
generation and sending of the I
CODE1-Quit-Frames
Is TimeSlotPeriod > 0 the next Frame starts exact with the interval
TimeSlotPeriod/CoderRate
delayed after each previous Send Frame. CoderRate defines the clock frequency of the coder.
If TimeSlotPeriod = 0, the send function will not be triggered automatically.
The content of the register TimeSlotPeriod can be changed during the active mode. The modification take
effect at the next restart of the TimeSlotPeriod.
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