DCAN Registers
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23.4.54 IF3UPD78 Register (offset = 16Ch) [reset = 0h]
IF3UPD78 is shown in Figure 23-72 and described in Table 23-67.
The automatic update functionality of the IF3 register set can be configured for each message object. A
message object is enabled for automatic IF3 update, if the dedicated IF3UpdEn flag is set. This means
that an active NewDat flag of this message object (e.g due to reception of a CAN frame) will trigger an
automatic copy of the whole message object to IF3 register set. IF3 Update enable should not be set for
transmit objects.
Figure 23-72. IF3UPD78 Register
31 30 29 28 27 26 25 24
IF3UpdEn[128:113]
R/W-0h
23 22 21 20 19 18 17 16
IF3UpdEn[128:113]
R/W-0h
15 14 13 12 11 10 9 8
IF3UpdEn[112:97]
R/W-0h
7 6 5 4 3 2 1 0
IF3UpdEn[112:97]
R/W-0h
LEGEND: R/W = Read/Write; R = Read only; W1toCl = Write 1 to clear bit; -n = value after reset
Table 23-67. IF3UPD78 Register Field Descriptions
Bit Field Type Reset Description
31-16 IF3UpdEn[128:113] R/W 0h
IF3 Update Enabled (for all message objects)
0x0 = Automatic IF3 update is disabled for this message object.
0x1 = Automatic IF3 update is enabled for this message object. A
message object is scheduled to be copied to IF3 register set, if
NewDat flag of the message object is active.
15-0 IF3UpdEn[112:97] R/W 0h
IF3 Update Enabled (for all message objects)
0x0 = Automatic IF3 update is disabled for this message object.
0x1 = Automatic IF3 update is enabled for this message object. A
message object is scheduled to be copied to IF3 register set, if
NewDat flag of the message object is active.
3988
Controller Area Network (CAN) SPRUH73H–October 2011–Revised April 2013
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