參數資料
型號: L64780
廠商: LSI Corporation
英文描述: DVB-T COFDM Demodulator(對地數字視頻廣播 正交編碼頻率分割多路處理解調器)
中文描述: 的DVB - T COFDM解調器(對地數字視頻廣播正交編碼頻率分割多路處理解調器)
文件頁數: 61/126頁
文件大小: 953K
代理商: L64780
Interrupt Registers
4-9
4.2.2 Interrupt Mask Register, Address Line 0x01
The microprocessor can select between a polling or interrupt driven
approach by programming the Interrupt Mask register. Only when the bit
in the Interrupt Mask register associated with the event bit in the Interrupt
register is set to 1 is the interrupt for this event is enabled; otherwise,
polling is selected.
Any interrupt-related events reported in the Interrupt register lead to the
assertion of the INTn signal (active LOW). On receiving an interrupt
signal, the microcontroller is expected to read the Interrupt register to
identify the cause(s) of this interrupt. The microcontroller thereby resets
all interrupt events in the Interrupt register; this remains in effect until a
new interrupt (TPS info change or Sync change) occurs. To disable
permanently the interrupt mechanism, reset the Interrupt Mask register.
Figure 4.4
shows an implementation of the interrupt generation.
Figure 4.4
Interrupt Generation
Event
i
Mask
i
From other interrupts
INT
AND
OR
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