參數資料
型號： MC56F8014VFAE
廠商： Freescale Semiconductor
文件頁數： 63/124頁
文件大?。?/td> 0K
描述： IC DIGITAL SIGNAL CTRLR 32-LQFP
標準包裝： 250
系列： 56F8xxx
核心處理器： 56800E
芯體尺寸： 16-位
速度： 32MHz
連通性： I²C，SCI，SPI
外圍設備： POR，PWM，WDT
輸入/輸出數： 26
程序存儲器容量： 16KB（8K x 16）
程序存儲器類型： 閃存
RAM 容量： 2K x 16
電壓 - 電源 (Vcc/Vdd)： 3 V ~ 3.6 V
數據轉換器： A/D 8x12b
振蕩器型： 內部
工作溫度： -40°C ~ 105°C
封裝/外殼： 32-LQFP
包裝： 托盤
配用： DEMO56F8014-E-ND - BOARD DEMO MC56F8014 W/UNIV PS
DEMO56F8014-ND - BOARD DEMO MC56F8014 W/US PS
APMOTOR56F8000E-ND - KIT DEMO MOTOR CTRL SYSTEM
DEMO56F8014-EE-ND - BOARD DEMO FOR 56F8014
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
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