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參數資料
| 型號： | 4432-T-B1 B 915 |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數： | 23/47頁 |
| 文件大?。?/td> | 799K |
| 描述： | KIT DEV TEST EZRADIOPRO SI4432 |
| 標準包裝： | 1 |
| 附件類型： | 測試卡，收發器，915MHz |
| 適用于相關產品： | EZRadioPRO? |
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Si4430/31/32-B1
Rev 1.1
23
3.3. Interrupts
The Si4430/31/32 is capable of generating an interrupt signal when certain events occur. The chip notifies the
microcontroller that an interrupt event has occurred by setting the nIRQ output pin LOW = 0. This interrupt signal
will be generated when any one (or more) of the interrupt events (corresponding to the Interrupt Status bits) shown
below occur. The nIRQ pin will remain low until the microcontroller reads the Interrupt Status Register(s) (Registers
03h04h) containing the active Interrupt Status bit. The nIRQ output signal will then be reset until the next change
in status is detected. The interrupts must be enabled by the corresponding enable bit in the Interrupt Enable
Registers (Registers 05h06h). All enabled interrupt bits will be cleared when the microcontroller reads the
interrupt status register. If the interrupt is not enabled when the event occurs it will not trigger the nIRQ pin, but the
status may still be read at anytime in the Interrupt Status registers.
See AN440: EZRadioPRO Detailed Register Descriptions for a complete list of interrupts.
Add R/W Function/Descript
ion
D7
D6
D5
D4
D3
D2
D1
D0
POR Def.
03
R
Interrupt Status 1
ifferr
itxffafull
itxffaem
irxffafull iext ipksent ipkvalid icrcerror
04
R
Interrupt Status 2
iswdet
ipreaval ipreainval
irssi
iwut
ilbd
ichiprdy
ipor
05 R/W Interrupt Enable 1
enfferr entxffafull entxffaem enrxffafull enext enpksent enpkvalid encrcerror
00h
06 R/W Interrupt Enable 2 enswdet enpreaval enpreainval enrssi enwut enlbd enchiprdy enpor
01h
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