參數(shù)資料
型號： MC56F8347MPY60
廠商： MOTOROLA INC
元件分類： 數(shù)字信號處理
英文描述： 16-BIT, 120 MHz, OTHER DSP, PQFP160
封裝： LQFP-160
文件頁數(shù)： 129/160頁
文件大小： 2217K
代理商： MC56F8347MPY60
70
56F8347 Technical Data
Preliminary
5.3.3
Fast Interrupt Handling
Fast interrupts are described in the DSP56800E Reference Manual. The interrupt controller
recognizes fast interrupts before the core does.
A fast interrupt is defined (to the ITCN) by:
1. Setting the priority of the interrupt as level 2, with the appropriate field in the IPR registers
2. Setting the FIMn register to the appropriate vector number
3. Setting the FIVALn and FIVAHn registers with the address of the code for the fast interrupt
When an interrupt occurs, its vector number is compared with the FIM0 and FIM1 register values.
If a match occurs, and it is a level 2 interrupt, the ITCN handles it as a fast interrupt. The ITCN
takes the vector address from the appropriate FIVALn and FIVAHn registers, instead of generating
an address that is an offset from the VBA.
The core then fetches the instruction from the indicated vector adddress and if it is not a JSR, the
core starts its fast interrupt handling.
Table 5-2. Interrupt Priority Encoding
IPIC_LEVEL[1:0]1
1.
See IPIC field definition in Section 5.6.30.2
Current Interrupt Priority
Level
Required Nested
Exception Priority
00
No Interrupt or SWILP
Priorities 0, 1, 2, 3
01
Priority 0
Priorities 1, 2, 3
01
Priority 1
Priorities 2, 3
11
Priorities 2 or 3
Priority 3
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MC56F8347MPYE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CONTROLLER RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8347VPY 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-BIT HYBRID CONTROLLERS
MC56F8347VPY60 制造商:Freescale Semiconductor 功能描述:
MC56F8347VPYE 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC 16 BIT HYBRID CNTRLR RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MC56F8347VVF 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:16-bit Digital Signal Controllers
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