參數(shù)資料
型號: PPXY8300A6T1
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: Pressure Sensor
英文描述: DIFFERENTIAL, PEIZORESISTIVE PRESSURE SENSOR, RECTANGULAR, SURFACE MOUNT
封裝: SOIC-20
文件頁數(shù): 18/162頁
文件大?。?/td> 4316K
代理商: PPXY8300A6T1
MPXY8300 Series
Sensors
114
Freescale Semiconductor
13.6.2
RFX Control Register 1 - RFCR1
The RFCR1 register contains eight control bits for the RFX as described in Figure 13-10. This register is accessed by writing to
the RFX register address $01 using the SPI.
13.6.3
RFX Control Register 2 - RFCR2
The RFCR2 register contains six control bits for the RFX as described in Figure 13-11. This register is accessed by writing to the
RFX register address $02 using the SPI.
Table 13-4 Data Rate Options
Data Rate
BPS Value
Target
Nominal
fRF = 315 MHz and CF = 0
fRF = 434 MHz and CF = 1
Decimal
Hexidecimal
2000 bps
2003
124
$7C
2400 bps
2408
103
$67
4000 bps
3975
62
$3E
4500 bps
4472
55
$37
4800 bps
4816
51
$33
5000 bps
5008
49
$31
9600 bps
9632
25
$19
19200 bps
19264
12
$0C
$01
Bit 7
6
5
4
3
2
1
Bit 0
R
EOM
FRM
W
RESET:
0
Figure 13-10 RFX Control Register 1 (RFCR1)
Table 13-5 RFX Control Register 1 Field Descriptions
Field
Description
7
EOM
End of Message — The EOM control bit selects whether there will be two data bit times of no carrier at the end
of each datagram. The EOM control bit is cleared by a RFX reset.
0
EOM bit times not added
1
EOM bit times added
6-0
FRM[6:0]
determined by the binary value of the FRM bits plus one. This makes the range of bits from 1 to 128. The FRM
control bits are cleared by a RFX reset.
$02
Bit 7
6
5
4
3
2
1
Bit 0
R
RFM
POL
CODE
CPT1
CPT0
AVDD
VCAP
CPUMP
W
RESET:
0
Figure 13-11 RFX Control Register 2 (RFCR2)
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