參數(shù)資料
型號: MC56F8014MFAE
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 數(shù)字信號處理
英文描述: 0-BIT, 8 MHz, OTHER DSP, PQFP32
封裝: ROHS COMPLIANT, PLASTIC, LQFP-32
文件頁數(shù): 63/124頁
文件大?。?/td> 1681K
代理商: MC56F8014MFAE
Introduction
56F8014 Technical Data, Rev. 11
Freescale Semiconductor
43
Part 5 Interrupt Controller (ITCN)
5.1 Introduction
The Interrupt Controller (ITCN) module is used to arbitrate between various interrupt requests (IRQs), to
signal to the 56800E core when an interrupt of sufficient priority exists, and to what address to jump in
order to service this interrupt.
5.2 Features
The ITCN module design includes these distinctive features:
Programmable priority levels for each IRQ
Two programmable Fast Interrupts
Notification to SIM module to restart clocks out of Wait and Stop modes
Ability to drive initial address on the address bus after reset
For further information, see Table 4-2, Interrupt Vector Table Contents.
5.3 Functional Description
The Interrupt Controller contains registers that allow each of the 46 interrupt sources to be set to one of
three priority levels (excluding certain interrupts that are of fixed priority). Next, all of the interrupt
requests of a given level are priority encoded to determine the lowest numerical value of the active
interrupt requests for that level. Within a given priority level, number 0 is the highest priority and number
45 is the lowest.
During wait and stop modes, the system clocks and the 56800E core are turned off. The ITCN can wake
the core and restart system clocks by signaling a pending IRQ to the System Integration Module (SIM) to
FM_USTAT
$13
User Status Register
FM_CMD
$14
Command Register
$15
Reserved
$16
Reserved
$17
Reserved
FM_DATA
$18
Data Buffer Register
$19
Reserved
$1A
Reserved
FM_OPT1
$1B
Optional Data 1 Register
Reserved
FM_TSTSIG
$1D
Test Array Signature Register
Table 4-22 Flash Module Registers Address Map (Continued)
(FM_BASE = $00 F400)
Register Acronym
Address Offset
Register Description
相關(guān)PDF資料
PDF描述
MC56F8014VFAE 0-BIT, 8 MHz, OTHER DSP, PQFP32
MC56F8037VLH 16-BIT, FLASH, 8 MHz, MICROCONTROLLER, PQFP64
MC56F8145VFG 4-BIT, 120 MHz, OTHER DSP, PQFP128
MC56F8146VFVE 16-BIT, 120 MHz, OTHER DSP, PQFP144
MC56F8146VFV 16-BIT, 120 MHz, OTHER DSP, PQFP144
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參數(shù)描述
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