參數(shù)資料
型號(hào)： XC164TM
廠商： INFINEON TECHNOLOGIES AG
英文描述： 16-Bit Single-Chip Microcontroller with C166SV2 Core
中文描述： 16位單片機(jī)與C166SV2核心
文件頁(yè)數(shù)： 40/65頁(yè)
文件大?。?/td> 587K
代理商： XC164TM
XC164TM
Derivatives
Functional Description
Data Sheet
38
V1.0, 2005-11
3.12
The Clock Generation Unit uses a programmable on-chip PLL with multiple prescalers
to generate the clock signals for the XC164TM with high flexibility. The master clock
f
MC
is the reference clock signal and is output to the external system. The CPU clock
f
CPU
and the system clock
f
SYS
are derived from the master clock either directly (1:1) or via a
2:1 prescaler (
f
SYS
=
f
CPU
=
f
MC
/ 2). See also
Section 4.4.1
.
The on-chip oscillator can drive an external crystal or accepts an external clock signal.
The oscillator clock frequency can be multiplied by the on-chip PLL (by a programmable
factor) or can be divided by a programmable prescaler factor.
If the bypass mode is used (direct drive or prescaler) the PLL can deliver an independent
clock to monitor the clock signal generated by the on-chip oscillator. This PLL clock is
independent from the XTAL1 clock. When the expected oscillator clock transitions are
missing the Oscillator Watchdog (OWD) activates the PLL Unlock/OWD interrupt node
and supplies the CPU with an emergency clock, the PLL clock signal. Under these
circumstances the PLL will oscillate with its basic frequency.
The oscillator watchdog can be disabled
by switching the PLL off. This reduces power
consumption, but also no interrupt request will be generated in case of a missing
oscillator clock.
Clock Generation
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PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
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XC167CI_02 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:16-Bi t Single-Chip Microcontroller Preliminary
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