XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 426

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

MSCAN Controller (MSCAN08)
23.14.11 MSCAN08 Transmit Error Counter
23.14.12 MSCAN08 Identifier Acceptance Registers
Technical Data
426
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:
$050F
Bit 7
Figure 23-25. Transmit Error Counter (CTXERR)
0
MSCAN Controller (MSCAN08)
= Unimplemented
TXERR6
6
0
TXERR5
5
0
TXERR4
4
0
TXERR3
3
0
MC68HC908AZ60A — Rev 2.0
TXERR2
2
0
TXERR1
1
0
MOTOROLA
TXERR0
Bit 0
0