MC68HC908AZ32ACFU MOTOROLA [Motorola, Inc], MC68HC908AZ32ACFU Datasheet - Page 439

• Manufacturer Part Number: MC68HC908AZ32ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

24.14.11 MSCAN08 Transmit Error Counter
24.14.12 MSCAN08 Identifier Acceptance Registers
68HC908AZ32A — Rev 0.0
MOTOROLA
NOTE:
Address:
This register reflects the status of the MSCAN08 transmit error counter.
The register is read only.
Both error counters may only be read when in Sleep or Soft Reset mode.
On reception each message is written into the background receive
buffer. The CPU is only signalled to read the message, however, if it
passes the criteria in the identifier acceptance and identifier mask
registers (accepted); otherwise, the message will be overwritten by the
next message (dropped).
The acceptance registers of the MSCAN08 are applied on the IDR0 to
IDR3 registers of incoming messages in a bit by bit manner.
For extended identifiers, all four acceptance and mask registers are
applied. For standard identifiers only the first two (CIDMR0/1 and
CIDAR0/1) are applied.
Reset:
Read: TXERR7
Write:
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Bit 7
Figure 24-25. Transmit Error Counter (CTXERR)
0
MSCAN Controller (MSCAN08)
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TXERR6
= Unimplemented
6
0
TXERR5
5
0
TXERR4
4
0
Programmer’s Model of Control Registers
TXERR3
3
0
MSCAN Controller (MSCAN08)
TXERR2
2
0
Advance Information
TXERR1
1
0
TXERR0
Bit 0
0
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