UPD78F0838 Renesas Electronics Corporation., UPD78F0838 Datasheet - Page 635

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

Note Setting with a DBT value of 7 or less is valid only when the value of the C0BRP register is other than 00H.
Caution The values in Table 15-22 do not guarantee the operation of the network system. Thoroughly
DBT Length
7
7
6
6
5
4
11
11
11
11
10
10
10
10
9
9
9
8
8
8
Note
Note
Note
Note
Note
Note
check the effect on the network system, taking into consideration oscillation errors and delays of
the CAN bus and CAN transceiver.
SEGMENT
SYNC
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Valid Bit Rate Setting
SEGMENT
PROP
Table 15-22. Settable Bit Rate Combinations (3/3)
2
4
6
8
1
3
5
7
2
4
6
1
3
5
2
4
1
3
2
1
Preliminary User’s Manual U19748EJ1V0UD
CHAPTER 15 CAN CONTROLLER
SEGMENT1
PHASE
4
3
2
1
4
3
2
1
3
2
1
3
2
1
2
1
2
1
1
1
SEGMENT2
PHASE
4
3
2
1
4
3
2
1
3
2
1
3
2
1
2
1
2
1
1
1
TSEG1[3:0]
C0BTR Register Setting
0101
0110
0111
1000
0100
0101
0110
0111
0100
0101
0110
0011
0100
0101
0011
0100
0010
0011
0010
0001
Value
TSEG2[2:0]
011
010
001
000
011
010
001
000
010
001
000
010
001
000
001
000
001
000
000
000
Sampling Point
(Unit %)
63.6
72.7
81.8
90.9
60.0
70.0
80.0
90.0
66.7
77.8
88.9
62.5
75.0
87.5
71.4
85.7
66.7
83.3
80.0
75.0
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