Infineon Technologies TC1796 - Page 1261

TC1796
Peripheral Units (Vol. 2 of 2)
Micro Second Channel (MSC)
User’s Manual 21-44 V2.0, 2007-07
MSC, V2.0
The Downstream Status Register DSS contains counter bit fields, status bits, and
indicates the number of passive time frames.
DSS
Downstream Status Register (18
H
) Reset Value: 0000 0000
H
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
0CFADFA0 DC
rrhrhr rh
1514131211109876543210
0 NPTF 0 PFC
rrwrrh
Field Bits Type Description
PFC [3:0] rh Passive Time Frame Counter
In Data Repetition Mode, this bit field indicates the count
of passive time frames that are currently transmitted. In
Triggered Mode PFC remains at 0000
B
.
0000
B
Data frame is transmitted.
0001
B
First passive time frame is transmitted.
0010
B
Second passive time frame is transmitted.
…
B
…
1111
B
Fifteenth passive time frame is transmitted.
NPTF [11:8] rw Number Of Passive Time Frames
This bit field indicates the number of passive time
frames that are inserted in Data Repetition Mode
between two data frames.
0000
B
No passive time frame inserted.
0001
B
One passive time frame inserted.
0010
B
Two passive time frames inserted.
…
B
…
1111
B
Fifteen passive time frames inserted.
Note: NPTF is buffered in a shadow buffer at the start of
each data frame.