Enhanced Time Processing Unit (eTPU2)
29-44
Freescale Semiconductor
PXR40 Microcontroller Reference Manual, Rev. 1
ETPD — Entry Table Pin Direction
This bit selects which channel signal, input or output, is used in the Entry Point selection. The ETPD
value has to be compatible with the function chosen for the channel, selected in the field CFS. For
details about Entry Table and condition encoding schemes, refer to the
eTPU Reference Manual
.
1 = use PSTO for Entry Point selection.
0 = use PSTI for Entry Point selection.
ETCS — Entry Table Condition Select
This bit determines the channel condition encoding scheme that selects, according to channel
conditions, the Entry Point to be taken in an Entry Table. ETCS value has to be compatible with the
function chosen for the channel, selected in field CFS. Two condition encoding schemes are available.
For details about Entry Table and condition encoding schemes, refer to the
eTPU Reference Manual
.
1 = select Alternate Entry Table Condition encoding scheme.
0 = select Standard Entry Table Condition encoding scheme.
CFS[0:4] — Channel Function Select
This field defines the function to be performed by the channel (see the
eTPU Reference Manual
for
details). The Function assigned to the channel has to be compatible with the channel condition
encoding scheme, selected by field ETCS.
ODIS — Output Disable
This bit enables the channel to have its output forced to the value opposite to OPOL when the output
disable input signal corresponding to the channel group that it belongs is active. See
eTPU Channel Output Disable Signals,
and the
eTPU Reference Manual
for details.
1 = turns on the output disable feature for the channel
0 = turns off the output disable feature for the channel.
OPOL - Output Polarity
Determines the output signal polarity. The activation of the output disable signal forces, when enabled
by the ODIS bit, the channel output signal to the opposite of this polarity (see the
eTPU Reference
Manual
for details).
1 = output active high (output disable drives output to low)
0 = output active low (output disable drives output to high)
CPBA[0:10] — Channel x Parameter Base Address
The value of this field times 8 specifies the SDM parameter base host (byte) address for channel x
(2-parameter granularity; see
Section 29.3.2.4, SDM Organization
). As seen by the Host, the channel
parameter base (byte) address is:
without parameter sign extension: ETP CPBA*8
with parameter sign extension: ETP CPBA*8
11
High
Table 29-15. Priority level Bits (continued)
CPR
Priority
Summary of Contents for PXR4030
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