參數資料
型號: XC888CLM
廠商: INFINEON TECHNOLOGIES AG
元件分類: 8位微控制器
英文描述: 8-bit Microcontroller with 2/4/8K Bytes In-System Programmable Flash
中文描述: 8位微控制器與2/4/8K字節(jié)在系統可編程閃存
文件頁數: 72/119頁
文件大小: 895K
代理商: XC888CLM
XC886/888CLM
Functional Description
Data Sheet
Prelimary
68
V0.1, 2006-02
3.8.2
The CGU generates all clock signals required within the microcontroller from a single
clock, f
sys
. During normal system operation, the typical frequencies of the different
modules are as follow:
CPU clock: CCLK, SCLK = 24 MHz
Fast clock (used by MCAN): FCLK = 24 or 48 MHz
Peripheral clock: PCLK = 24 MHz
Flash Interface clock: CCLK2 = 96 MHz and CCLK = 24 MHz
In addition, different clock frequency can output to pin CLKOUT(P0.0 or P0.7). The clock
output frequency can further be divided by 2 using toggle latch (bit TLEN is set to 1), the
resulting output frequency has 50% duty cycle.
Figure 27
shows the clock distribution of
the XC886/888.
Clock Management
Figure 27
Clock Generation from f
sys
PLL
N,P,K
fsys=
96MHz
CLKREL
CCLK
SCLK
PCLK
CCLK2
CORE
Peripherals
FLASH
Interface
OSC
CLKOUT
fosc
COREL
COUTS
Toggle
Latch
TLEN
/2
MCAN
FCLK
FCCFG
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