UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 639

• Manufacturer Part Number: UPD78F0838
• Description: 8-bit Single-chip Microcontrollers
• Manufacturer: Renesas Electronics Corporation.

(Unit: kbps)
Rate Value
Caution The values in Table 15-24 do not guarantee the operation of the network system. Thoroughly
Set Baud
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
33.3
33.3
100
100
100
100
100
100
100
check the effect on the network system, taking into consideration oscillation errors and delays
of the CAN bus and CAN transceiver.
Division
Ratio of
C0BRP
Table 15-24. Representative Examples of Baud Rate Settings (f
10
10
16
16
20
12
12
12
16
16
24
24
30
30
24
24
30
30
32
32
37
37
40
40
48
48
60
60
8
8
8
8
00000111
00000111
00001001
00001001
00001111
00001111
00010011
00000111
00000111
00001011
00001011
00001011
00001111
00001111
00010111
00010111
00011101
00011101
00010111
00010111
00011101
00011101
00011111
00011111
00100100
00100100
00100111
00100111
00101111
00101111
00111011
00111011
Set Value
Register
C0BRP
Length
of DBT
20
20
16
16
10
10
24
24
16
16
16
12
12
24
24
20
20
16
16
15
15
13
13
12
12
10
10
8
8
8
8
8
Preliminary User’s Manual U19748EJ1V0UD
CHAPTER 15 CAN CONTROLLER
Valid Bit Rate Setting (Unit: kbps)
SEGMENT
SYNC
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
1
1
1
1
SEGMENT
PROP
11
11
11
10
9
7
9
3
5
3
7
9
7
9
5
7
3
5
7
9
9
7
9
8
6
8
5
7
3
5
3
5
SEGMENT
PHASE
1
5
4
4
3
3
2
2
8
7
4
3
2
3
2
2
1
8
7
5
4
4
3
3
2
3
2
3
2
3
2
2
1
SEGMENT
PHASE
2
5
4
4
3
3
2
2
8
7
4
3
2
3
2
2
1
8
7
5
4
4
3
3
2
3
2
3
2
3
2
2
1
CANMOD
TSEG1
C0BTR Register
1101
1110
1010
1011
0101
0110
0100
1110
1111
1010
1011
1100
0111
1000
0100
0101
1110
1111
1101
1110
1010
1011
1010
1011
1000
1001
0111
1000
0101
0110
0100
0101
[3:0]
Setting Value
= 16 MHz) (2/2)
TSEG2
[2:0]
100
011
011
010
010
001
001
111
110
011
010
001
010
001
001
000
111
110
100
011
011
010
010
001
010
001
010
001
010
001
001
000
Sampling
(Unit: %)
point
75.0
80.0
75.0
81.3
70.0
80.0
75.0
66.7
70.8
75.0
81.3
87.5
75.0
83.3
75.0
87.5
66.7
70.8
75.0
80.0
75.0
81.3
80.0
86.7
76.9
84.6
75.0
83.3
70.0
80.0
75.0
87.5
637