参数资料
型号: SAK-XC866-1FRA
厂商: INFINEON TECHNOLOGIES AG
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
封装: PLASTIC, GREEN, TSSOP-38
文件页数: 66/116页
文件大小: 1640K
代理商: SAK-XC866-1FRA
XC866
Functional Description
Data Sheet
49
V1.2, 2007-10
3.4.3
Interrupt Priority
Each interrupt source, except for NMI, can be individually programmed to one of the four
possible priority levels. The NMI has the highest priority and supersedes all other
interrupts. Two pairs of interrupt priority registers (IP and IPH, IP1 and IPH1) are
available to program the priority level of each non-NMI interrupt vector.
A low-priority interrupt can be interrupted by a high-priority interrupt, but not by another
interrupt of the same or lower priority. Further, an interrupt of the highest priority cannot
be interrupted by any other interrupt source.
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 18.
Table 18
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,Fractional Divider, LIN Interrupts 6
ADC Interrupt
7
SSC Interrupt
8
External Interrupt 2
9
External Interrupt [6:3]
10
CCU6 Interrupt Node Pointer 0
11
CCU6 Interrupt Node Pointer 1
12
CCU6 Interrupt Node Pointer 2
13
CCU6 Interrupt Node Pointer 3
14
相关PDF资料
PDF描述
SAK-XC866-4FRA 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAK-XC866-4RRA 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAK-XC866-4RRI3V 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAF-XC866-2FRA3V 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
SAF-XC866-2FRA 8-BIT, FLASH, 26.7 MHz, MICROCONTROLLER, PDSO38
相关代理商/技术参数
参数描述
SAKXC8661FRA AA 制造商:Infineon Technologies AG 功能描述:
SAK-XC866-1FRA AB 功能描述:8位微控制器 -MCU 8-Bit Single-Chip 3.3V 26.67MHz Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAKXC8661FRAAB 功能描述:8位微控制器 -MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAK-XC866-1FRI AB 功能描述:8位微控制器 -MCU 8 BIT FLASH SINGLE CHIP CNTRLR RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT
SAK-XC866-2FRA BC 功能描述:8位微控制器 -MCU 8-Bit Single-Chip 3.3V 26.67MHz Flash RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT