s908gz60cfa Freescale Semiconductor, Inc, s908gz60cfa Datasheet - Page 165

• Manufacturer Part Number: s908gz60cfa
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

IDAM2–IDAM0— Identifier Acceptance Mode
IDHIT2–IDHIT0— Identifier Acceptance Hit Indicator
The IDHIT indicators are always related to the message in the foreground buffer. When a message gets
copied from the background to the foreground buffer, the indicators are updated as well.
12.13.10 MSCAN08 Receive Error Counter
This read-only register reflects the status of the MSCAN08 receive error counter.
Freescale Semiconductor
The CPU sets these flags to define the identifier acceptance filter organization (see
Acceptance
will be accepted so that the foreground buffer will never be reloaded.
The MSCAN08 sets these flags to indicate an identifier acceptance hit (see
Filter).
Table 12-9
Address:
The CIDAC register can be written only if the SFTRES bit in the CMCR0 is
set.
Filter).
Reset:
Read:
Write:
MC68HC908GZ60 • MC68HC908GZ48 • MC68HC908GZ32 Data Sheet, Rev. 6
IDAM2
IDHIT2
summarizes the different settings.
RXERR7
Table 12-9
$050E
0
0
0
0
1
0
0
0
0
1
Bit 7
0
Table 12-9. Identifier Acceptance Mode Settings
Table 12-10. Identifier Acceptance Hit Indication
Figure 12-25. Receiver Error Counter (CRXERR)
= Unimplemented
RXERR6
IDHIT1
IDAM1
summarizes the different settings. In “filter closed” mode no messages
6
0
X
X
0
0
1
1
0
0
1
1
RXERR5
5
0
IDAM0
IDHIT0
X
X
0
1
0
1
0
1
0
1
NOTE
RXERR4
4
0
Single 32-bit acceptance filter
Two 16-bit acceptance filter
Four 8-bit acceptance filters
Filter closed
Reserved
Filter 0 hit
Filter 1 hit
Filter 2 hit
Filter 3 hit
Reserved
Identifier Acceptance Mode
Identifier Acceptance Hit
RXERR3
3
0
Programmer’s Model of Control Registers
RXERR2
2
0
RXERR1
12.5 Identifier Acceptance
1
0
RXERR0
Bit 0
12.5 Identifier
0
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