Nxp semiconductors – NXP Semiconductors LPC24XX UM10237 User Manual
Page 488
UM10237_4
© NXP B.V. 2009. All rights reserved.
User manual
Rev. 04 — 26 August 2009
488 of 792
NXP Semiconductors
UM10237
Chapter 18: LPC24XX CAN controllers CAN1/2
5
TS1
Transmit Status 1.
1
0
0(idle)
There is no transmission from Tx Buffer 1.
1(transmit)
The CAN Controller is transmitting a message from Tx Buffer 1.
6
ES
Error Status. This bit is identical to the ES bit in the CANxGSR.
0
0
7
BS
Bus Status. This bit is identical to the BS bit in the CANxGSR.
0
0
8
RBS
Receive Buffer Status. This bit is identical to the RBS bit in the CANxGSR.
0
0
9
DOS
Data Overrun Status. This bit is identical to the DOS bit in the CANxGSR.
0
0
10
TBS2
Transmit Buffer Status 2.
1
1
0(locked)
Software cannot access the Tx Buffer 2 nor write to the corresponding
CANxTFI, CANxTID, CANxTDA, and CANxTDB registers because a
message is either waiting for transmission or is in transmitting process.
1(released)
Software may write a message into the Transmit Buffer 2 and its CANxTFI,
CANxTID, CANxTDA, and CANxTDB registers.
11
TCS2
Transmission Complete Status.
1
x
0(incomplete)
The previously requested transmission for Tx Buffer 2 is not complete.
1(complete)
The previously requested transmission for Tx Buffer 2 has been successfully
completed.
12
RS
Receive Status. This bit is identical to the RS bit in the GSR.
1
0
13
TS2
Transmit Status 2.
1
0
0(idle)
There is no transmission from Tx Buffer 2.
1(transmit)
The CAN Controller is transmitting a message from Tx Buffer 2.
14
ES
Error Status. This bit is identical to the ES bit in the CANxGSR.
0
0
15
BS
Bus Status. This bit is identical to the BS bit in the CANxGSR.
0
0
16
RBS
Receive Buffer Status. This bit is identical to the RBS bit in the CANxGSR.
0
0
17
DOS
Data Overrun Status. This bit is identical to the DOS bit in the CANxGSR.
0
0
18
TBS3
Transmit Buffer Status 3.
1
1
0(locked)
Software cannot access the Tx Buffer 3 nor write to the corresponding
CANxTFI, CANxTID, CANxTDA, and CANxTDB registers because a
message is either waiting for transmission or is in transmitting process.
1(released)
Software may write a message into the Transmit Buffer 3 and its CANxTFI,
CANxTID, CANxTDA, and CANxTDB registers.
19
TCS3
Transmission Complete Status.
1
x
0(incomplete)
The previously requested transmission for Tx Buffer 3 is not complete.
1(complete)
The previously requested transmission for Tx Buffer 3 has been successfully
completed.
20
RS
Receive Status. This bit is identical to the RS bit in the GSR.
1
0
21
TS3
Transmit Status 3.
1
0
0(idle)
There is no transmission from Tx Buffer 3.
1(transmit)
The CAN Controller is transmitting a message from Tx Buffer 3.
Table 427. Status Register (CAN1SR - address 0xE004 401C, CAN2SR - address 0xE004 801C) bit description
Bit
Symbol Value
Function
Reset
Value
RM
Set