UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 352

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

(3) Example of setting baud rate
352
115200
153600
312500
625000
10400
19200
24000
31250
33660
38400
56000
62500
76800
Baud
[bps]
4800
9600
Rate
Remark TPS01, TPS00: Bits 7 and 6 of baud rate generator control register 0 (BRGC0) (setting of base clock
Example: Frequency of base clock = 2.5 MHz = 2,500,000 Hz
TPS01,
TPS00
2H
2H
2H
1H
1H
1H
1H
1H
1H
1H
−
−
−
−
−
k:
f
ERR:
PRS
f
PRS
Set value of MDL04 to MDL00 bits of BRGC0 register = 10000B (k = 16)
Target baud rate = 76,800 bps
Baud rate = 2.5 M/(2 × 16)
Error = (78,125/76,800 − 1) × 100
26
13
12
26
21
16
15
13
9
8
−
−
−
−
−
:
k
= 2.0 MHz
Calculated
10417
19231
23810
31250
33333
38462
55556
62500
= 1.725 [%]
Value
4808
9615
−
−
−
−
−
= 2,500,000/(2 × 16) = 78,125 [bps]
−0.79
−0.79
−0.79
ERR
0.16
0.16
0.16
0.16
0.16
[%]
(f
Value set by the MDL04 to MDL00 bits of BRGC0 (k = 8, 9, 10, ..., 31)
Peripheral hardware clock frequency
Baud rate error
0
0
−
−
−
−
−
XCLK0
Table 14-5. Set Data of Baud Rate Generator
TPS01,
TPS00
))
CHAPTER 14 SERIAL INTERFACE UART0
3H
3H
2H
2H
2H
2H
2H
2H
1H
1H
1H
1H
1H
−
−
f
PRS
16
30
16
13
10
22
20
16
11
k
8
9
8
8
−
−
User’s Manual U17260EJ6V0UD
= 5.0 MHz
Calculated
113636 −1.36
156250
10417
19531
24038
31250
34722
39063
56818
62500
78125
Value
4883
9766
−
−
ERR
1.73
1.73
0.16
1.73
0.16
3.34
1.73
1.46
1.73
1.73
[%]
0
0
−
−
TPS01,
TPS00
3H
3H
3H
2H
2H
2H
2H
2H
2H
2H
1H
1H
1H
−
−
f
PRS
16
15
26
20
18
16
11
10
22
16
−
8
8
8
−
k
= 10.0 MHz
Calculated
113636 −1.36
156250
312500
10417
19531
24038
31250
34722
39063
56818
62500
78125
Value
9766
−
−
ERR
1.73
0.16
1.73
0.16
3.34
1.73
1.46
1.73
1.73
[%]
−
0
0
0
−
TPS01,
TPS00
3H
3H
3H
3H
3H
3H
2H
2H
2H
2H
2H
1H
1H
−
−
f
PRS
30
16
13
10
22
20
16
11
16
k
−
−
9
8
8
8
= 20.0 MHz
Calculated
113636 −1.36
156250
312500
625000
10417
19531
24038
31250
34722
39063
56818
62500
78125
Value
−
−
ERR
0.16
1.73
0.16
3.34
1.73
1.46
1.73
1.73
[%]
−
−
0
0
0
0