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): 160/162頁
文件大?。?/td> 4316K
代理商: PPXY8300A6T1
MPXY8300 Series
Sensors
Freescale Semiconductor
97
When LFAGC is set a read of the LFDATA register returns:
12.6.6
LF Control Register (LFCR)
7
6
5
4
3
2
1
0
R
LFD7
LFD6
LFD5
LFD4
LFD3
LFD2
LFD1
LFD0
W
Reset
0
= Unimplemented or Reserved
Figure 12-16 LF Data Register (LFDATA), with LFAGC Clear
7
6
5
4
3
2
1
0
R
0
AGC5
AGC4
AGC3
AGC2
AGC1
AGC0
W
Reset
0
= Unimplemented or Reserved
Figure 12-17 LF Data Register (LFDATA), with LFAGC Set
Table 12-6 LFDATA Field Descriptions
Field
LFAGC
Description
7–0
LFD[7:0]
0
LF Data Bits — These bits are the 8-bit data contained at the end of a valid Manchester data-
gram in the Manchester data mode.These data bits are read when the LFAGC bit is clear. Any
write to these bits is ignored.
7-6
unused
1
Unused bits, always read as 0.
5–0
AGC[5:0]
AGC Setting — These bits are the 6-bit setting of the AGC when using the Manchester data
mode.These bits are read when the LFAGC bit is set. Any write to these bits is ignored.
7
6
5
4
3
2
1
0
R
LFM
LFCT
LFON
LFS
W
Reset
0
1
Figure 12-18 LF Control Register (LFCR)
Table 12-7 LFCR Field Descriptions
Field
Description
7–6
LFM[1:0]
LFR Operating Mode — The LFM0 and LFM1 bits control the decoding mode of the LFR decoder.
00 MCU Direct.
01 Carrier Detect.
1X Manchester Data.
5
LFCT
LF Carrier Detection Time — This bit controls the length of the carrier, tCD, needed to generate the LFR inter-
rupt in the carrier detect mode.
0tCD set at 11 periods of MFO (approximately 88μs).
1tCD set at 22 periods of MFO (approximately 176μs).
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