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): 162/162頁
文件大?。?/td> 4316K
代理商: PPXY8300A6T1
MPXY8300 Series
Sensors
Freescale Semiconductor
99
12.6.8
LF Control/Status Register 1 (LFCS1)
6
LFIE
LFR Interrupt Enable — The LFIE bit enables the generation of the LFR interrupt from the LFR to MCU.
0
The generation of the LFR interrupt is disabled.
1
The generation of the LFR interrupt is enabled.
5
LFOFF
LFR Lockout — This status bit indicates if a Manchester encoding error has occurred and LFR detector and
LFR decoder are disabled for the reset time, tLFRST.
0tLFRST is no longer in progress.
1
Manchester encoding error has occurred and tLFRST is still in progress.
4
LFRST
LFR Reset Time — The LFRST bit selects the length of time for tRST. The length of time, tRST is defined by
counting the number of LFO rising edges equal to (2^LFRST)*(2^LFS[3:0]) +1. The tRST period ends at the start
of an LFR sample time (tLFON).
3
LFEN
LFR Detector Enable — This bit enables the LFR detector to be powered up during a given sample time.
0
LFR detector disabled.
1
LFR detector enabled during sampling.
2
LFWU8
LFR Wake-Up Code with 8 Bits — The LFWU8 bit selects the number of bits in Wake-Up Code (8 or 16 bits).
0
16 bit wake-up code.
1
8 bit wake-up code.
1
LFLVL
LFR Detector Level — The LFLVL bit selects one of two sensitivity levels for the LFR detector.
0
Detection level approximately 3.5mVP-P (SDET_H)
1
Detection level approximately 10mVP-P (SDET_L)
0
LFAGC
LFR AGC Level Select — This bit control whether the data read from LFDATA register is a data byte of
Manchester datagram or the setting of the AGC.
0
LFDATA has the setting of the AGC.
1
LFDATA has a data byte of Manchester datagram.
7
6
5
4
3
2
1
0
R
LFDF
LFBPF
LFCF
0
LFBF
LFAF
MDDO
LFIG
W
LFDFAK
LFCFAK
Reset
0
= Unimplemented or Reserved
Figure 12-20 LF Control/Status Register 1 (LFCS1)
Table 12-10 LFCS1 Register Field Descriptions
Field
Description
7
LFDF
LFR Data Flag — The LFDF bit indicates when a Manchester datagram has been properly accepted and 8 bits
of data have been stored to the LF data register (LFDATA).
0
LF data not ready or previously acknowledged.
1
LF data ready in the LFDATA register.
6
LFBPF
LFR Bandpass Filter— The read-only LFBPF bit reflects the state of the bandpass filter.
0
Filter out of range.
1
Filter in range.
6
LFDFAK
LFR Data Flag Acknowledge — The write-only LFDFAK bit resets the LFDF, MDDO, LFBF and LFAF flag bits.
0
No effect.
1
Reset the LFDF, LFBF and LFAF flag bits.
Table 12-9 LFCS0 Field Descriptions (Continued)
Field
Description
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