XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 389

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

MC68HC908AZ60A — Rev 2.0
MOTOROLA
Figure 23-3. Single 32-Bit Maskable Identifier Acceptance Filter
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•
•
•
AM7
AC7
ID28
ID10
Single identifier acceptance filter, each to be applied to a) the full
29 bits of the extended identifier and to the following bits of the
CAN frame: RTR, IDE, SRR or b) the 11 bits of the standard
identifier plus the RTR and IDE bits of CAN 2.0A/B messages.
This mode implements a single filter for a full length CAN 2.0B
compliant extended identifier.
filter bank (CIDAR0-3, CIDMR0-3) produces a filter 0 hit.
Two identifier acceptance filters, each to be applied to a) the 14
most significant bits of the extended identifier plus the SRR and
the IDE bits of CAN2.0B messages, or b) the 11 bits of the
identifier plus the RTR and IDE bits of CAN 2.0A/B messages.
Figure 23-4
CIDMR0-3) produces filter 0 and 1 hits.
Four identifier acceptance filters, each to be applied to the first
eight bits of the identifier. This mode implements four independent
filters for the first eight bits of a CAN 2.0A/B compliant standard
identifier.
3, CIDMR0-3) produces filter 0 to 3 hits.
Closed filter. No CAN message will be copied into the foreground
buffer RxFG, and the RXF flag will never be set.
CIDMR0
CIDAR0
IDR0
IDR0
MSCAN Controller (MSCAN08)
Figure 23-5
AM0
ID21
AC0
ID3
shows how the 32-bit filter bank (CIDAR0-3,
AM7
AC7
ID20
ID2
CIDMR1
CIDAR1
IDR1
IDR1
ID Accepted (Filter 0 Hit)
shows how the 32-bit filter bank (CIDAR0-
IDE
AM0
ID15
AC0
Figure 23-3
AM7
AC7
ID14
ID10
CIDMR2
CIDAR2
IDR2
IDR2
MSCAN Controller (MSCAN08)
shows how the 32-bit
Identifier Acceptance Filter
AM0
AC0
ID7
ID3
AM7
AC7
ID6
ID10
CIDMR3
CIDAR3
Technical Data
IDR3
IDR3
AM0
RTR
AC0
ID3
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