UM10503
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© NXP B.V. 2012. All rights reserved.
User manual
Rev. 1.3 — 6 July 2012
1085 of 1269
NXP Semiconductors
UM10503
Chapter 42: LPC43xx C_CAN
10
RXIE
Receive interrupt enable
0
R/W
0
INTPND will be left unchanged after successful
reception of a frame.
1
INTPND will be set after successful reception of
a frame.
11
TXIE
Transmit interrupt enable
0
R/W
0
The INTPND bit will be left unchanged after a
successful reception of a frame.
1
INTPND will be set after a successful reception
of a frame.
12
UMASK
Use acceptance mask
Remark:
If UMASK is set to 1, the message
object’s mask bits have to be programmed
during initialization of the message object before
MAGVAL is set to 1.
0
R/W
0
Mask ignored.
1
Use mask (MSK[28:0], MXTD, and MDIR) for
acceptance filtering.
13
INTPND
Interrupt pending
0
R/W
0
This message object is not the source of an
interrupt.
1
This message object is the source of an
interrupt. The Interrupt Identifier in the Interrupt
Register will point to this message object if there
is no other interrupt source with higher priority.
14
MSGLST
Message lost (only valid for message objects in
the direction receive).
0
R/W
0
No message lost since this bit was reset last by
the CPU.
1
The Message Handler stored a new message
into this object when NEWDAT was still set, the
CPU has lost a message.
15
NEWDAT
New data
0
R/W
0
No new data has been written into the data
portion of this message object by the message
handler since this flag was cleared last by the
CPU.
1
The message handler or the CPU has written
new data into the data portion of this message
object.
31:16 -
-
Reserved
0
-
Table 956. CAN message interface message control registers (IF1_MCTRL, address
0x400E 2038 (C_CAN0) and 0x400A 4038 (C_CAN1)) bit description
…continued
Bit
Symbol
Value
Description
Reset
value
Access