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: 100/134页
文件大小: 864K
代理商: SAL-XC886CLM-8FFA5V
SAL-XC886CLM
Functional Description
Data Sheet
61
V1.0, 2010-05
3.4.3
Interrupt Priority
An interrupt that is currently being serviced can only be interrupted by a higher-priority
interrupt, but not by another interrupt of the same or lower priority. Hence, an interrupt of
the highest priority cannot be interrupted by any other interrupt request.
If two or more requests of different priority levels are received simultaneously, the
request of the highest priority is serviced first. If requests of the same priority are
received simultaneously, then an internal polling sequence determines which request is
serviced first. Thus, within each priority level, there is a second priority structure
determined by the polling sequence shown in Table 20.
Table 20
Priority Structure within Interrupt Level
Source
Level
Non-Maskable Interrupt (NMI)
(highest)
External Interrupt 0
1
Timer 0 Interrupt
2
External Interrupt 1
3
Timer 1 Interrupt
4
UART Interrupt
5
Timer 2,UART Normal Divider Overflow,
MultiCAN, LIN Interrupt
6
ADC, MultiCAN Interrupt
7
SSC Interrupt
8
External Interrupt 2, Timer 21, UART1, UART1
Normal Divider Overflow, MDU, CORDIC Interrupt
9
External Interrupt [6:3], MultiCAN Interrupt
10
CCU6 Interrupt Node Pointer 0, MultiCAN interrupt 11
CCU6 Interrupt Node Pointer 1, MultiCAN Interrupt 12
CCU6 Interrupt Node Pointer 2, MultiCAN Interrupt 13
CCU6 Interrupt Node Pointer 3, MultiCAN Interrupt 14
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