upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 657

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

Set Baud
Caution:
Remark:
Value
kbps)
(Unit:
Rate
83.3
83.3
83.3
83.3
83.3
83.3
83.3
83.3
83.3
83.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
33.3
100
100
100
100
Table 16-22: Representative Examples of Baud Rate Settings (f
Division
Ratio of
CnBRP
The values in Table 16-22 do not guarantee the operation of the network system.
Thoroughly check the effect on the network system, taking into consideration oscilla-
tion errors and delays of the CAN bus and CAN transceiver.
n = 0, 1
10
10
12
12
10
10
12
12
15
15
16
16
20
20
24
24
30
30
8
8
4
4
6
6
6
6
8
8
00000111
00000111
00001001
00001001
00000011
00000011
00000101
00000101
00000101
00000101
00000111
00000111
00001011
00001011
00001001
00001001
00001011
00001011
00001110
00001110
00001111
00001111
00010011
00010011
00010111
00010111
00011101
00011101
Set Value
Register
CnBRP
Length of
DBT
User’s Manual U16702EE3V2UD00
10
10
24
24
16
16
16
16
12
12
24
24
20
20
16
16
15
15
12
12
10
10
8
8
8
8
8
8
Chapter 16 FCAN Controller
Valid Bit Rate Setting (Unit: kbps)
SYNC
MENT
SEG-
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
PROP
MENT
SEG-
11
3
5
3
5
7
9
5
7
9
5
7
3
5
7
9
7
9
7
9
6
8
5
7
3
5
3
5
SEGMEN
PHASE
T1
3
2
2
1
8
7
5
4
3
2
3
2
2
1
8
7
6
5
4
3
4
3
3
2
3
2
2
1
SEGMEN
PHASE
T2
3
2
2
1
8
7
5
4
3
2
3
2
2
1
8
7
6
5
4
3
4
3
3
2
3
2
2
1
CANMOD
TSEG1
CnBTR Register
0101
0110
0100
0101
1110
1111
1001
1010
1011
1100
0111
1000
0100
0101
1110
1111
1100
1101
1010
1011
1001
1010
0111
1000
0101
0110
0100
0101
[3:0]
Setting Value
= 8 MHz) (2/2)
TSEG2
[2:0]
010
001
001
000
111
110
100
011
010
001
010
001
001
000
111
110
101
100
011
010
011
010
010
001
010
001
001
000
Sampling
Unit: (%)
Point
70.0
80.0
75.0
87.5
66.7
70.8
68.8
75.0
81.3
87.5
75.0
83.3
75.0
87.5
66.7
70.8
70.0
75.0
75.0
81.3
73.3
80.0
75.0
83.3
70.0
80.0
75.0
87.5
657