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参数资料
型号： PPXY8300A6T1
厂商： FREESCALE SEMICONDUCTOR INC
元件分类： Pressure Sensor
英文描述： DIFFERENTIAL, PEIZORESISTIVE PRESSURE SENSOR, RECTANGULAR, SURFACE MOUNT
封装： SOIC-20
文件页数： 10/162页
文件大小： 4316K
代理商： PPXY8300A6T1
MPXY8300 Series
Sensors
Freescale Semiconductor
107
13.2
RF Data Modes
There are two modes of operation in using the RF output based on the RFM control bit as given in Table 13-2.
13.2.1
RF Data Buffer Mode
In the RF data buffer mode the transmissions are sent by dedicated logic hardware while the MCU can be put into a low power
mode until the transmission is completed.
Table 13-1 RFX Register Summary
RFX
Address
Register
Name
Bit 7
6
5
4
3
2
1
Bit 0
00
RFCR0
BPS
01
RFCR1
EOM
FRM
02
RFCR2
RFM
POL
CODE
CPT
AVDD
VCAP
CPUMP
03
XMTCR
SEND
RFEF
RCTS
PWR
04
PLLCR0
AFREQ[12:5]
05
PLLCR1
AFREQ[4:0]
1
0
06
PLLCR2
BFREQ[12:5]
07
PLLCR3
BFREQ[4:0]
CF
MOD
CKREF
08
RFXTRIM1
0
DISCHARGE
0
1
09 - 0F
Unused
—
10
BUFF0
RFD[7:0]
11
BUFF1
RFD[15:8]
12
BUFF2
RFD[23;16]
13
BUFF3
RFD[31:24]
14
BUFF4
RFD[39:32]
15
BUFF5
RFD[47:40]
16
BUFF6
RFD[55:48]
17
BUFF7
RFD[63:56]
18
BUFF8
RFD[71:64]
19
BUFF9
RFD[79:72]
1A
BUFFA
RFD[87:80]
1B
BUFFB
RFD[95:88]
1C
BUFFC
RFD[103:96]
1D
BUFFD
RFD[111:104]
1E
BUFFE
RFD[119:112]
1F
BUFFF
RFD[127:120]
Table 13-2 RF Operational Modes
RFM
Mode
Data Source
Data
Encoding
MCU Control
Data Rate
0
MCU Direct
Software
Direct Drive of RF Output
Stage
Controlled by MCU and Internal
8 MHz Oscillator
1
RF Data Buffer
Hardware
Stores Data and
Triggers Transmission
Controlled by Bit Rate Generator
and External Crystal
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