TC1796
Peripheral Units (Vol. 2 of 2)
Micro Second Channel (MSC)
User’s Manual 21-45 V2.0, 2007-07
MSC, V2.0
DC [22:16] rh Downstream Counter
This bit field indicates the number of downstream shift
clock periods that have been elapsed since the start of
the current frame.
00
H
No shift clock elapsed (after counter reset).
01
H
1 shift clock elapsed.
…
B
…
7F
H
127 shift clocks elapsed.
The DC is reset at the end of a downstream frame.
DFA 24 rh Data Frame Active
This bit indicates if a data frame is currently sent out.
0
B
No data frame is currently sent out.
1
B
A data frame is currently sent out.
CFA 25 rh Command Frame Active
This bit indicates if a command frame is currently sent
out.
0
B
No command frame is currently sent out.
1
B
A command frame is currently sent out.
0 [7:4],
[15:12],
23,
[31:26]
r Reserved
Read as 0; should be written with 0.
Field Bits Type Description
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