參數(shù)資料
型號: 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): 86/163頁
文件大?。?/td> 948K
代理商: CLRC632
Philips Semiconductors
Product Specification Rev. 3.0; May 2003
Multiple Protocol Contactless Reader IC
CL RC632
86
Confidential
9
TIMER UNIT
9.1
Overview
A timer is implemented in the CL RC632. It derives its clock from the 13.56 MHz chip-clock. The μ-Processor
may use this timer to manage timing relevant tasks.
The timer unit may be used in one of the following configurations:
The timer unit can be used to measure the time interval between two events or to indicate that a specific
event occurred after a specific time. The timer can be triggered by events which will be explained in the
following, but the timer itself does not influence any internal event (e.g. A timeout during data receiving does
not influence the receiving process automatically). Furthermore, several timer related flags are set and these
flags can be used to generate an interrupt.
Timeout-Counter
Watch-Dog Counter
Stop Watch
Programmable One-Shot
Periodical Trigger
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