p87c591vfb NXP Semiconductors, p87c591vfb Datasheet - Page 44

• Manufacturer Part Number: p87c591vfb
• Description: Single-chip 8-bit Microcontroller With Can Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
12.5.13 E
This register contains information about the type and location of errors on the bus. The Error Code Capture Register
appears to the CPU as a read only memory.
Table 26 Error Code Capture (ECC) (CAN address 12)
Table 27 Description of Error Code Capture (ECC) Register bits
2000 Jul 26
BIT SYMBOL
7
6
5
4
3
2
1
0
Single-chip 8-bit microcontroller with CAN controller
ERRC1
7
ERRC1
ERRC0
SEG4
SEG3
SEG2
SEG1
SEG0
DIR
RROR
C
ERRC0
ODE
Direction
Segment 4
Segment 3
Segment 2
Segment 1
Segment 0
Error Code 1
Error Code 0
6
C
NAME
APTURE
(ECC)
DIR
5
1 (RX)
0 (TX)
Reflects the current Frame Segment to determine between different error events:
00011
00010
00110
00100
00101
00111
01111
01110
01100
01101
01001
01011
01010
01000
11000
11001
11011
11010
10010
10001
10110
10011
10111
11100
ERRC1
0
0
1
1
VALUE
SEG4
Start Of Frame
ID28 ... ID21
ID20 ... ID18
SRTR Bit
IDE Bit
ID17 ... ID13
ID12 ... ID5
ID4 ... ID0
RTR Bit
Reserved Bit 1
Reserved Bit 0
Data Length Code
Data Field
CRC Sequence
CRC Delimiter
Acknowledge Slot
Acknowledge Delimiter
End Of Frame
Intermission
Active Error Flag
Passive Error Flag
Tolerate Dom. Bits
Error Delimiter
Overload Flag
4
ERRC0
0
1
0
1
44
SEG3
Bit Error
Form Error
Stuff Error
Other Error
Error occurred during reception
Error occurred during transmission
3
SEG2
2
FUNCTION
SEG1
Preliminary Specification
1
P8xC591
SEG0
0