UPD70F3714GC-8BS-A Renesas Electronics America, UPD70F3714GC-8BS-A Datasheet - Page 500
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UPD70F3714GC-8BS-A
Manufacturer Part Number
UPD70F3714GC-8BS-A
Description
MCU 32BIT V850ES/LX2 64-LQFP
Manufacturer
Renesas Electronics America
Series
V850ES/Ix2r
Datasheet
1.UPD70F3713GC-8BS-A.pdf
(674 pages)
Specifications of UPD70F3714GC-8BS-A
Core Processor
RISC
Core Size
32-Bit
Speed
20MHz
Connectivity
CSI, UART/USART
Peripherals
LVD, PWM, WDT
Number Of I /o
39
Program Memory Size
128KB (128K x 8)
Program Memory Type
FLASH
Ram Size
6K x 8
Voltage - Supply (vcc/vdd)
3.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPD70F3714GC-8BS-A
Manufacturer:
Renesas Electronics America
Quantity:
10 000
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Therefore, the maximum baud rate that can be received by the destination is as follows.
Similarly, obtaining the following maximum allowable transfer rate yields the following.
Therefore, the minimum baud rate that can be received by the destination is as follows.
Obtaining the allowable baud rate error for UARTAn and the destination from the above-described equations for
obtaining the minimum and maximum baud rate values yields the following.
Remarks 1. The reception accuracy depends on the bit count in 1 frame, the input clock
4
8
20
50
100
255
Division Ratio (k)
10
11
BRmax = (FLmin/11)
BRmin = (FLmax/11)
× FLmax = 11 × FL −
FLmax =
2. k: Setting value of UAnCTL2.UAnBRS7 to UAnCTL2.UAnBRS0 bits (n = 0, 1)
CHAPTER 12 ASYNCHRONOUS SERIAL INTERFACE A (UARTA)
Table 12-4. Maximum/Minimum Allowable Baud Rate Error
frequency, and the division ratio (k). The higher the input clock frequency
and the larger the division ratio (k), the higher the accuracy.
21k − 2
Maximum Allowable Baud Rate Error
20 k
−
−
1
1
=
FL × 11
=
k + 2
2 × k
21k − 2
21k + 2
20k
22k
User’s Manual U17716EJ2V0UD
+2.32%
+3.52%
+4.26%
+4.56%
+4.66%
+4.72%
× FL =
Brate
Brate
21k − 2
2 × k
FL
Minimum Allowable Baud Rate Error
−2.43%
−3.61%
−4.30%
−4.58%
−4.67%
−4.72%
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