參數(shù)資料
型號: MC56F8355MFG60
廠商: MOTOROLA INC
元件分類: 數(shù)字信號處理
英文描述: 4-BIT, 120 MHz, OTHER DSP, PQFP128
封裝: LQFP-128
文件頁數(shù): 117/152頁
文件大小: 2224K
代理商: MC56F8355MFG60
Block Diagram
56F8355 Technical Data
67
Preliminary
5.4 Block Diagram
Figure 5-1 Interrupt Controller Block Diagram
5.5 Operating Modes
The ITCN module design contains two major modes of operation:
Functional Mode
The ITCN is in this mode by default.
Wait and Stop Modes
During Wait and Stop modes, the system clocks and the 56800E core are turned off. The ITCN will
signal a pending IRQ to the System Integration Module (SIM) to restart the clocks and service the
IRQ. An IRQ can only wake up the core if the IRQ is enabled prior to entering the Wait or Stop
mode. Also, the IRQA and IRQB signals automatically become low-level sensitive in these modes
even if the control register bits are set to make them falling-edge sensitive. This is because there is
no clock available to detect the falling edge.
A peripheral which requires a clock to generate interrupts will not be able to generate interrupts
during Stop mode. The FlexCAN module can wake the device from Stop mode, and a reset will do
just that, or IRQA and IRQB can wake it up.
Priority
Level
2 -> 4
Decode
INT1
Priority
Level
2 -> 4
Decode
INT82
Level 0
82 -> 7
Priority
Encoder
any0
Level 3
82 -> 7
Priority
Encoder
any3
INT
VAB
IPIC
CONTROL
7
PIC_EN
IACK
SR[9:8]
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