参数资料
型号: SAL-XC886CLM-8FFA5V
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 80 MHz, MICROCONTROLLER, PQFP48
封装: GREEN, PLASTIC, TQFP-48
文件页数: 111/134页
文件大小: 864K
代理商: SAL-XC886CLM-8FFA5V
SAL-XC886CLM
Functional Description
Data Sheet
71
V1.0, 2010-05
PLL Mode
The system clock is derived from the oscillator clock, multiplied by the N factor, and
divided by the P and K factors. Both VCO bypass and PLL bypass must be inactive for
this PLL mode. The PLL mode is used during normal system operation.
(3.3)
System Frequency Selection
For the SAL-XC886, the value of P is fixed to 1. In order to obtain the required fsys, the
value of N and K can be selected by bits NDIV and KDIV respectively for different
oscillator inputs. The output frequency must always be configured for 80 MHz. Table 23
provides examples on how
f
sys = 80 MHz can be obtained for the different oscillator
sources.
Table 23
System frequency (
f
sys =80MHz)
Oscillator
Fosc
N
P
K
Fsys
On-chip
10 MHz
16
1
2
80 MHz
External
8 MHz
20
1
2
80 MHz
5 MHz
32
1
2
80 MHz
4 MHz
40
1
2
80 MHz
f
SYS
f
OSC
N
PK
×
-------------
×
=
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