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MRF89XA 数据表(PDF) 40 Page - Microchip Technology

部件名 MRF89XA
功能描述  Ultra Low-Power, Integrated ISM BandSub-GHz Transceiver
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制造商  MICROCHIP [Microchip Technology]
网页  http://www.microchip.com
标志 MICROCHIP - Microchip Technology

MRF89XA 数据表(HTML) 40 Page - Microchip Technology

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MRF89XA
DS70000622D-page 40
Preliminary
 2010-2017 Microchip Technology Inc.
2.15.2
FIFO TRANSMIT PLL AND RSSI INTERRUPT REQUEST CONFIGURATION REGISTER
DETAILS
REGISTER 2-15:
FTPRIREG: FIFO TRANSMIT PLL AND RSSI INTERRUPT REQUEST
CONFIGURATION REGISTER (ADDRESS:0x0E) (POR:0x01)
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-0
R/W-1
FIFOFM
FIFOFSC
TXDONE
IRQ0TXST
ENRIRQS
RIRQS
LSTSPLL
LENPLL
bit 7
bit 0
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n = Value at POR
‘1’ = Bit is set
‘0’ = Bit is cleared
x = Bit is unknown
r = Reserved
bit 7
FIFOFM: FIFO Filling Method bits
This bit decides the method of filling the FIFO (supports Buffered mode only).
1 = Manually controlled by FIFO fill
0 = Automatically starts when a Sync Word is detected (default)
bit 6
FIFOFSC: FIFO Filling Status or Control bits
This bit indicates the status of FIFO filling and also controls the filling up of the FIFO
(supports Buffered mode only).
STATUS: Reading (FIFOFM = 0)
1 = FIFO getting filled ( Sync Word has been detected)
0 = FIFO filling completed/stopped
CONTROL: Writing (FIFOFM = 1), clears the bit and waits for a new Sync Word (FOVRCLR = 0)
1 = Start filling the FIFO
0 = Stop filling the FIFO
bit 5
TXDONE: Transmit Done bit
This bit selects TXDONE as the corresponding IRQ source.
1 = TXDONE (goes high when the last bit has left the shift register)
0 = TX still in process
bit 4
IRQ0TXST: Transmit Start with IRQ0 bit
This bit indicates transmit start condition with IRQ0 as source.
If DMODE1:DMODE0 = 01  Buffered Mode:
1 = Transmit starts if FIFO is not empty, IRQ0 mapped to FIFOEMPTY
0 = Transmit starts if FIFO is full, IRQ0 mapped to FIFOEMPTY (default)
If DMODE1:DMODE0 = 1x  Packet Mode:
1 = Transmit starts if FIFO is not empty, IRQ0 mapped to FIFOEMPTY
0 = Start transmission when the number of bytes in the FIFO is greater than or equal to the threshold
set by the FTINT<5:0> bits (FIFOCREG<5:0), IRQ0 mapped to FIFO_THRESHOLD
bit 3
ENRIRQS: Enables RSSI IRQ source
1 = Set bit to ‘1’ (Required. It can be enabled at any time, and the user can choose to map this interrupt
to IRQ0/IRQ1 or not.)
0 = Reserved (Default. Setting this bit to ‘0’ disables the RSSI IRQ source.)
bit 2
RIRQS: RSSI IRQ Source
This bit indicates IRQ source as RSSI.
1 = Detected signal is above the value determined by the RTIVAL<7:0> bits (RSTHIREG<7:0>).
0 = Detected signal is less than the value determined by the RTIVAL<7:0> bits (RSTHIREG<7:0>).
Writing a ‘1’ for this bit clears RIRQS.
bit 1
LSTSPLL: Lock Status of PLL bit
1 = PLL locked (lock detected)
0 = PLL not locked
Writing a ‘1’ for this bit clears LSTSPLL.


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