Infineon Technologies TC1728 User Manual page 1237

As in Triggered Mode, the shift register loading event as described in
occurs in Data Repetition Mode just before a TRP, this means shortly before a command
or data frame transmission is started.
Passive Frame Counter in Data Repetition Mode
In Data Repetition Mode, a passive time frame counter DSS.PFC indicates how many
time frames have been already transmitted after the last regular data frame occurrence.
The passive time frame counter counts up from 0000
written into bit field DSS.NPTF (number of passive time frames). DSS.PFC = 0000
indicates that a data frame is requested for transmission.
Passive Frame
Counter
DSS.PFC
Transmitted
Frames
TRP
PTF = Passive Time Frame
DF = Data Frame
TRP = Time Reference Point
Figure 19-11 Passive Frame Counter Operation (with DSS.NPTF = 0101
User's Manual
MSC, V1.37 2009-05
0101
B
0001
0000
B
B
PTF DF PTF
TRP TRP TRP
Micro Second Channel (MSC)
to the value which has been
B
0100
0011 B
0010
B
B
PTF PTF PTF
TRP TRP TRP
19-18
TC1728
Section 19.1.2.2
0101
B
0001
0000
B
B
PTF DF PTF
TRP TRP TRP
MCT06237
)
B
V1.0, 2011-12
B