參數(shù)資料
型號: mPD705101
廠商: NEC Corp.
英文描述: V831TM 32-BIT MICROPROCESSOR
中文描述: V831TM 32位微處理器
文件頁數(shù): 27/72頁
文件大?。?/td> 302K
代理商: MPD705101
μ
PD705101
27
12. CLOCK GENERATION FUNCTION
The features of the clock generation function are as follows:
Generation and control of CPU clock and bus clock supplied to each hardware unit
Bus clock (
φ
): 16.7-33 MHz (f
B
)
CPU clock
: 50-100 MHz (3
×
f
B
)
The configuration of the clock generation function is shown below.
Figure 12-1. Block Diagram of Clock Generation Function
f
B
φ
OSC : Oscillator
PFD : Phase Frequency Detector
VCO : Voltage Controlled Oscillator
: Oscillation frequency or external clock frequency
: Bus clock
OSC
X2
X1
f
B
PDF
VCO
200 MHz
Phase
comparator
1/6
Bus clock
1/2
CPU clock
100 MHz
33 MHz
PLL synthesizer
φ
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