UPD78F0890GK(A)-GAJ-AX NEC, UPD78F0890GK(A)-GAJ-AX Datasheet - Page 490

• Manufacturer Part Number: UPD78F0890GK(A)-GAJ-AX
• Description: 8BIT MCU, 128K FLASH, 7K RAM, LQFP
• Manufacturer: NEC

Specifications of UPD78F0890GK(A)-GAJ-AX

• Controller Family/series: UPD78F
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 10
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

490
Rate Value
(Unit: kbps)
Caution The values in Table 16-24 do not guarantee the operation of the network system. Thoroughly
Set Baud
1000
1000
1000
1000
1000
1000
1000
1000
1000
500
500
500
500
500
500
500
500
500
250
250
250
250
250
250
250
125
125
125
125
125
125
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 16-24. Representative Examples of Baud Rate Settings (f
16
16
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
2
4
4
4
4
4
4
4
8
8
8
8
8
8
00000000
00000000
00000000
00000000
00000000
00000000
00000000
00000001
00000001
00000001
00000001
00000001
00000001
00000001
00000001
00000001
00000011
00000011
00000011
00000011
00000011
00000011
00000011
00000111
00000111
00000111
00000111
00000111
00000111
00001111
00001111
Set Value
Register
C0BRP
of DBT
Length
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
8
8
8
8
8
8
8
8
CHAPTER 16 CAN CONTROLLER
Valid Bit Rate Setting (Unit: kbps)
User’s Manual U17554EJ4V0UD
SEGME
SYNC
NT
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
SEGME
PROP
NT
11
13
11
13
11
11
1
3
5
7
9
3
5
1
3
5
7
9
3
5
3
5
7
9
3
5
3
7
9
3
5
SEGME
PHASE
NT1
7
6
5
4
3
2
1
2
1
7
6
5
4
3
2
1
2
1
6
5
4
3
2
2
1
6
4
3
2
2
1
SEGME
PHASE
NT2
7
6
5
4
3
2
1
2
1
7
6
5
4
3
2
1
2
1
6
5
4
3
2
2
1
6
4
3
2
2
1
CANMOD
TSEG1
C0BTR Register
0111
1000
1001
1010
1011
1100
1101
0100
0101
0111
1000
1001
1010
1011
1100
1101
0100
0101
1000
1001
1010
1011
1100
0100
0101
1000
1010
1011
1100
0100
0101
[3:0]
Setting Value
= 16 MHz) (1/2)
TSEG2
[2:0]
110
101
100
011
010
001
000
001
000
110
101
100
011
010
001
000
001
000
101
100
011
010
001
001
000
101
011
010
001
001
000
(Unit: %)
Samplin
g point
56.3
62.5
68.8
75.0
81.3
87.5
93.8
75.0
87.5
56.3
62.5
68.8
75.0
81.3
87.5
93.8
75.0
87.5
62.5
68.8
75.0
81.3
87.5
75.0
87.5
62.5
75.0
81.3
87.5
75.0
87.5