PXR40RM Datasheet, PDF (1126/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

Decimation Filter
Table 28-5. DECFILT_x_MSR Field Descriptions (continued)
Field
12
DIVRC
13
OVFC
14
OVRC
15
IVRC
16–21
22
IDF
23
ODF
24
25
IBIF
26
OBIF
27
Description
DIVR Clear bit—The DIVRC bit clears the DIVR Debug Filter Input Data Read Overrun indication bit in the Status
Register. This bit is self negated, therefore it is always read as zero.
0 No action
1 Clears DIVR
OVF Clear bit—The OVFC bit clears the OVF Output Overflow bit in the Status Register. This bit is self negated,
therefore it is always read as zero.
0 No action
1 Clears OVF
OVR Clear bit—The OVRC bit clears the OVR Output Overrun bit in the Status Register. This bit is self negated,
therefore it is always read as zero.
0 No action
1 Clears OVR
IVR Clear bit—The IVRC bit clears the IVR Filter Input Overrun indication bit in the Status Register. This bit is
self negated, therefore it is always read as zero.
0 No action
1 Clears IVR
Reserved
Input Data Flag—The IDF bit flag indicates when new data is available at the DECFILT_x_IB register or at the
DECFILT_x_IOB register. This flag generates an Interrupt Request if enabled by the IDEN bit in the
Configuration Register. This Flag is cleared by the IDFC Status bit or by a soft reset of the decimation filter.
0 Sample not received
1 New Sample received
Note: OBS: This flag is not used for read / write requests. It is used only to announce the input data event. For
read / write request flag, refer to IBIF.
Output Data Flag—The ODF bit flag indicates when a new decimated sample is available at the DECFILT_x_OB
register or at the DECFILT_x_IOB register. This flag generates an Interrupt Request if enabled by the ODEN bit
in the Configuration Register. This Flag is cleared by the ODFC Status bit or by a soft reset of the decimation
filter.
0 No new Decimated Output Sample available
1 New Decimated Output Sample available
Note: OBS: This flag is not used for read requests. It is used only to announce the output data event. For read
request flag, refer to OBIF.
Reserved
Input Buffer Interrupt Request Flag—The IBIF bit flag indicates that the input buffer DECFILT_x_IB is available
to be filled with new data, when Enhanced Debug Monitor is off. In Enhanced Debug Monitor, it indicates the
input buffer DECFILT_x_IB was filled with a new sample and is ready to be read.
0 No action
1 New Sample is requested (IO_SEL[1] = 1, EDME=0) or new sample is available in Enhanced Debug Monitor
(IO_SEL[1]=0, EDME=1).
Output Buffer Interrupt Request Flag—The OBIF bit flag indicates that either a new decimated sample is
available at the DECFILT_x_OB register.
0 No new Decimated Output available
1 New Decimated Output available
Reserved
28-12
PXR40 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor