TC1796
Peripheral Units (Vol. 2 of 2)
Controller Area Network (MultiCAN) Controller
User’s Manual 22-105 V2.0, 2007-07
MultiCAN, V2.0
MSC [31:28] rwh Message Status Count (TTCAN only)
MSC can have values between 0000
B
and 0111
B
.
An increment of MSC = 0111
B
results in
MSC = 0111
B
(no overflow). A decrement of
MSC = 0000
B
results in MSC = 0000
B
(no
underflow).
Transmission:
When message object n is scheduled for
transmission in an exclusive time window and the
transmission is successful within this time window
and the TTCAN is in error state S0 or S1, MSC is
decremented by one. If the transmission fails, bit
field MSC is incremented by one.
If the TTCAN is in error state S2 and detects CAN
bus-idle during the transmit enable window for
message object n, MSC is decremented by one
(although this message object is not transmitted).
Reception:
When message object n is scheduled for reception in
an exclusive time window and the reception is
successful within this time window, MSC is
decremented by one. If the reception does not take
place within this time window, MSC is incremented
by one.
If TTCAN function is not available/enabled, bit field
MSC is unchanged.
0 [7:4],
[15:12],
19
rw Reserved
Read as 0 after reset; value last written is read back.
Field Bits Type Description
To Next Page
Loading...
Need help?
General