Datasheet

www.ti.com DCAN Control Registers
26.17.32 IF3 Update Enable Registers (DCAN IF3UPD12 to DCAN IF3UPD78)
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 (for example, due to reception of a CAN frame) will
trigger an automatic copy of the whole message object to IF3 register set.
NOTE: IF3 Update enable should not be set for transmit objects.
Figure 26-74. IF3 Update Enable 12 Register (DCAN IF3UPD12) [offset = 160h]
31 0
IF3UpdEn[32:1]
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Figure 26-75. IF3 Update Enable 34 Register (DCAN IF3UPD34) [offset = 164h]
31 0
IF3UpdEn[64:33]
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Figure 26-76. IF3 Update Enable 56 Register (DCAN IF3UPD56) [offset = 168h]
31 0
IF3UpdEn[96:65]
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Figure 26-77. IF3 Update Enable 78 Register (DCAN IF3UPD78) [offset = 16Ch]
31 0
IF3UpdEn[128:97]
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 26-32. IF3 Update Control Register Field Descriptions
Bit Name Value Description
31-0 IF3UpdEn[128:1] IF3 Update Enabled (for all message objects)
0 Automatic IF3 update is disabled for this message object.
Automatic IF3 update is enabled for this message object. A message object is scheduled to be
1
copied to IF3 register set, if NewDat flag of the message object is active.
1219
SPNU562–May 2014 Controller Area Network (DCAN) Module
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