New Data Register (Can Nwdat) [Offset = 0X9C]; Interrupt Pending Register (Can Intpnd) [Offset = 0Xb0]; New Data Registers Field Descriptions; Interrupt Pending Registers Field Descriptions - Texas Instruments Concerto F28M36 Series Technical Reference Manual

CAN Control Registers
23.15.10 New Data Registers (CAN NWDAT)
These registers hold the NewDat bits of the implemented message objects. By reading out these bits, the
CPU can check for new data in the message objects. The NewDat bit of a specific message object can be
set/reset by the CPU via the IF1 or IF2 Interface register sets, or by the message handler after reception
of a data frame or after a successful transmission.
31
15
LEGEND: R = Read; -n = value after reset
NOTE: Bits 0 through 31 correspond to message object 1 through 32, respectively.
Bit Field
31-0 NewDat[31:0]
23.15.11 Interrupt Pending Registers (CAN INTPND)
These registers hold the IntPnd bits of the implemented message objects. By reading out these bits, the
CPU can check for pending interrupts in the message objects. The IntPnd bit of a specific message object
can be set/reset by the CPU via the IF1 or IF2 Interface register sets, or by the message handler after a
reception or a successful transmission.
Figure 23-29. Interrupt Pending Register (CAN INTPND) [offset = 0xB0]
31
15
LEGEND: R = Read; -n = value after reset
NOTE: Bits 0 through 31 correspond to message object 1 through 32, respectively.
Bit Field
31-0 IntPndReg[31:0]
1590
M3 Controller Area Network (CAN)
Figure 23-28. New Data Register (CAN NWDAT) [offset = 0x9C]
Table 23-14. New Data Registers Field Descriptions
Value Description
New Data Bits (for all message objects)
0 No new data has been written into the data portion of this message object by the message handler
since the last time when this flag was cleared by the CPU.
1 The message handler or the CPU has written new data into the data portion of this message object.
IntPndReg[31:16]
IntPndReg[15:0]
Table 23-15. Interrupt Pending Registers Field Descriptions
Value Description
Interrupt Pending Bits (for all message objects)
0 This message object is not the source of an interrupt.
1 This message object is the source of an interrupt.
Copyright © 2012–2019, Texas Instruments Incorporated
NewDat[31:16]
R-0
NewDat[15:0]
R-0
R-0
R-0
SPRUHE8E – October 2012 – Revised November 2019
www.ti.com
16
0
16
0
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