UPD78F0413GA-GAM-AX NEC, UPD78F0413GA-GAM-AX Datasheet - Page 334
UPD78F0413GA-GAM-AX
Manufacturer Part Number
UPD78F0413GA-GAM-AX
Description
8BIT UC, 32K FLASH, 1KB RAM, LCD
Manufacturer
NEC
Datasheet
1.UPD78F0413GA-GAM-AX.pdf
(562 pages)
Specifications of UPD78F0413GA-GAM-AX
Controller Family/series
UPD78F
No. Of I/o's
30
Ram Memory Size
1024Byte
Cpu Speed
10MHz
No. Of Timers
8
No. Of Pwm
RoHS Compliant
Core Size
8bit
Program Memory Size
32KB
Oscillator Type
External, Internal
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Therefore, the maximum receivable baud rate at the transmission destination is as follows.
Similarly, the maximum permissible data frame length can be calculated as follows.
Therefore, the minimum receivable baud rate at the transmission destination is as follows.
The permissible baud rate error between UART0 and the transmission destination can be calculated from the
above minimum and maximum baud rate expressions, as follows.
Remarks 1. The permissible error of reception depends on the number of bits in one frame, input clock
10
11
8
16
24
31
Minimum permissible data frame length: FLmin = 11
Division Ratio (k)
FLmax = 11
FLmax =
BRmax = (FLmin/11)
BRmin = (FLmax/11)
2. k: Set value of BRGC0
frequency, and division ratio (k). The higher the input clock frequency and the higher the division
ratio (k), the higher the permissible error.
21k – 2
20k
FL
Table 13-6. Maximum/Minimum Permissible Baud Rate Error
FL
k + 2
2
Maximum Permissible Baud Rate Error
k
11
1
1
CHAPTER 13 SERIAL INTERFACE UART0
=
=
FL =
21k + 2
21k
22k
20k
21k
+3.53%
+4.14%
+4.34%
+4.44%
2
User’s Manual U18698EJ1V0UD
2
Brate
k
Brate
2
FL
FL
k
2k
2
Minimum Permissible Baud Rate Error
FL =
21k + 2
2k
3.61%
4.19%
4.38%
4.47%
FL
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