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: 109/134页
文件大小: 864K
代理商: SAL-XC886CLM-8FFA5V
SAL-XC886CLM
Functional Description
Data Sheet
69
V1.0, 2010-05
Note: The boot options are valid only with the default set of UART and JTAG pins.
3.8
Clock Generation Unit
The Clock Generation Unit (CGU) allows great flexibility in the clock generation for the
SAL-XC886. The power consumption is indirectly proportional to the frequency, whereas
the performance of the microcontroller is directly proportional to the frequency. During
user program execution, the frequency can be programmed for an optimal ratio between
performance and power consumption. Therefore the power consumption can be
adapted to the actual application state.
Features
Phase-Locked Loop (PLL) for multiplying clock source by different factors
PLL Base Mode
Prescaler Mode
PLL Mode
Power-down mode support
The CGU consists of an oscillator circuit and a PLL. In the SAL-XC886, the oscillator can
be from either of these two sources: the on-chip oscillator (10 MHz) or the external
oscillator (4 MHz to 12 MHz). The term “oscillator” is used to refer to both on-chip
oscillator and external oscillator, unless otherwise stated. After the reset, the on-chip
oscillator will be used by default.The external oscillator can be selected via software. In
addition, the PLL provides a fail-safe logic to perform oscillator run and loss-of-lock
detection. This allows emergency routines to be executed for system recovery or to
perform system shut down.
1) BSL mode is automatically entered if no valid password is installed and data at memory address 0000H equals
zero.
2) OSC is bypassed in MultiCAN BSL mode
3) Normal user mode with standard JTAG (TCK,TDI,TDO) pins for hot-attach purpose.
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