Infineon Technologies TC1728 User Manual page 1236

sent first, followed by the data frame when the next TRP is reached (assuming no further
command frame has been requested).
When the last passive frame is transmitted, DSC.DP becomes set by hardware. This
triggers the start of a data frame when the next TRP is reached.
Load shift register
for command frame
transmission
Start command frame
DSC.CP = 0
no
Cmd. frame
finished?
Start shortened
passive time frame
Figure 19-10 Data Repetition Mode Flow Diagram
The type of the active frame (data or command frame) that is currently processed and
output is indicated by two status flags: DSS.DFA is set during a data frame transmission
and DSS.CFA is set during a command frame transmission. Further, the downstream
counter DSS.DC indicates the number of shift clock periods that have been elapsed
since the start of the current data, command, or passive time frame.
User's Manual
MSC, V1.37 2009-05
Repetition Mode
(writing DSC.TM = 1)
no
yes
1)
yes
Micro Second Channel (MSC)
Starting Data
TRP reached?
yes
DSC.CP = 1?
no
yes
DSC.DP = 1?
no
Start passive
time frame
no
Last Passive
Time Frame?
yes
1)
DSC.DP = 1
19-17
TC1728
Load shift register
for data frame
transmission
Start data frame
1)
DSC.DP = 0
1) Done by hardware
MCA06236
V1.0, 2011-12