m30833fjgp Renesas Electronics Corporation., m30833fjgp Datasheet - Page 377

• Manufacturer Part Number: m30833fjgp
• Description: Renesas 16/32-bit Single-chip Microcomputer M16c Family / M32c/80 Series
• Manufacturer: Renesas Electronics Corporation.

R
R
M
e
E
3
. v
J
Figure 22.26 C0AFS Register
2
0
22.1.19 CAN0 Acceptance Filter Support Register (C0AFS Register)
1
9
C
3 .
B
8 /
0
1
The C0AFS register enables prompt performance of the table search to determine the validity of a
received ID. This function is for standard-formatted ID only.
3
b15
0
CAN0 Acceptance Filter Support Register
3
J
G
4
a
0 -
n
o r
Data used to search a data table is
generated from a received ID in stan-
dard format. The table search with this
data determines whether or not a re-
ceived ID is valid.
3 .
1
u
NOTES:
, 1
3
p
1
1. Value is obtained by setting the SLEEP bit in the C0SLPR register to "1" (sleep mode exited)
b8
2
(
M
0
and supplying the clock to the CAN module after reset.
0
b7
3
6
2
Write
Read
C
Write to
the C0AFS register
Read from
the C0AFS register
Page 354
8 /
, 3
Bit search information
b0
M
CSID7 CSID6
3
b15
b15
Generates data to determine a received ID
2
01
02
04
08
10
20
40
80
C
f o
Divide it to 8 bits and 3 bits
16
16
16
16
16
16
16
16
Symbol
C0AFS
8 /
4
3
8
Received ID
) T
b15
SID5 SID4 SID3 SID2 SID1 SID0
CSID5 CSID4 CSID3
b15
8
0 0 1 1 0 0 1 1 0 0 0 1 1 0 1 1
0 0 0 0 1 0 0 0 1 1 0 1 1 1 1 0
Bit search information
3-8 decoding
b7
0 0 0 0 0 0 0 1
0 0 0 0 0 0 1 0
0 0 0 0 0 1 0 0
0 0 0 0 1 0 0 0
0 0 0 1 0 0 0 0
0 0 1 0 0 0 0 0
0 1 0 0 0 0 0 0
1 0 0 0 0 0 0 0
SID5
SID4 SID3 SID2 SID1 SID0
"08
Address
0245
16
Function
CSID2 CSID1 CSID0 SID10 SID9 SID8 SID7 SID6
"
b3
SID10
Address search information
16
1 1 0 1 1 1 1 0 0 1 1
- 0244
"6"
"D"
b0
b8
b8
16
b8
3 low-order bits of received ID
Top+DE
Top+FE
Top+FF
Top+00
Top+01
8 bits
b7
b7
Address search information
b7
"D"
"F"
16
16
16
16
16
"E"
00F
6F7
7F7
7FF
SID10SID9 SID8 SID7 SID6
007
0
1
2
3
4
5
6
7
"0"
"1"
"0"
"0"
"0"
b7
16
16
16
16
16
16
16
16
After Reset
0100
16
16
16
16
16
00E
6F6
7F6
7FE
006
16
SID10 SID9 SID8 SID7 SID6
"0"
"0"
"0"
"0"
"0"
b6
"3"
"E"
3 bits
0000
Setting Range
16
16
16
16
16
"3"
(1)
00D
7FD
005
6F5
7F5
16
SID0
"0"
"0"
"0"
"0"
"1"
b5
b0
b0
Bit search information
to FFFF
16
16
16
16
16
SID5 SID4 SID3
00C
7FC
004
6F4
7F4
"0"
"0"
"0"
"0"
"0"
b4
Because the value of
the 3 bits is 3, b3 in the
table on the left is 1.
(If the value of the 3 bits
is 4, b4 in the table in
the left is 1.)
16
16
16
16
16
16
7FB
003
00B
6F3
7F3
"0"
"0"
"1"
"0"
"0"
b3
RW
RW
b0
b0
16
16
16
16
16
00A
6F2
7F2
7FA
002
"0"
"0"
"0"
"0"
"0"
b2
16
16
16
16
16
22. CAN Module
6F1
7F1
7F9
001
009
"1"
"0"
"0"
"0"
"0"
b1
16
16
16
16
16
000
008
6F0
7F0
7F8
"0"
"0"
"0"
"1"
"0"
b0
16
16
16
16
16