MC68HC08AZ16 Datasheet, PDF (392/527 Pages) Motorola, Inc – HCMOS Microcontroller Unit

msCAN08 Controller (msCAN08)
Programmer’s model of control registers
CIDAR0 ^R
$xx10
W
CIDAR1 R
$xx11 W
CIDAR2 R
$xx12 W
CIDAR3 R
$xx13 W
RESET
BIT 7
AC7
BIT 6
AC6
BIT 5
AC5
BIT 4
AC4
BIT 3
AC3
BIT 2
AC2
AC7
AC6
AC5
AC4
AC3
AC2
AC7
AC6
AC5
AC4
AC3
AC2
AC7
AC6
AC5
AC4
AC3
AC2
U
U
U
U
U
U
U
= Unaffected
Figure 25. Identifier Acceptance Registers
BIT 1
AC1
AC1
AC1
AC1
U
BIT 0
AC0
AC0
AC0
AC0
U
AC7 – AC0 — Acceptance Code Bits
AC7 – AC0 comprise a user defined sequence of bits with which the
corresponding bits of the related identifier register (IDRn) of the
receive message buffer are compared. The result of this comparison
is then masked with the corresponding identifier mask register.
NOTE: The CIDAR0-3 registers can only be written if the SFTRES bit in the
msCAN08 Module Control Register is set
msCAN08
Identifier Mask
Registers
(CIDMR0-3)
The identifier mask register specifies which of the corresponding bits in
the identifier acceptance register are relevant for acceptance filtering.
CIDMR0 ^R
$xx14
W
CIDMR1 R
$xx15 W
CIDMR2 R
$xx16 W
CIDMR3 R
$xx17 W
RESET
BIT 7
AM7
AM7
AM7
AM7
U
BIT 6
AM6
BIT 5
AM5
BIT 4
AM4
BIT 3
AM3
BIT 2
AM2
AM6
AM5
AM4
AM3
AM2
AM6
AM5
AM4
AM3
AM2
AM6
AM5
AM4
AM3
AM2
U
U
U
U
U
U
= Unaffected
Figure 26. Identifier Mask Registers
BIT 1
AM1
AM1
AM1
AM1
U
BIT 0
AM0
AM0
AM0
AM0
U
45-can
MOTOROLA
msCAN08 Controller (msCAN08)
MC68HC08AZ32
391