UPD70F3785GJ-GAE-AX Renesas Electronics America, UPD70F3785GJ-GAE-AX Datasheet - Page 837

• Manufacturer Part Number: UPD70F3785GJ-GAE-AX
• Description: MCU 32BIT V850ES/JX3-E 144-LQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Jx3-Er

Specifications of UPD70F3785GJ-GAE-AX

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 50MHz
• Connectivity: CSI, EBI/EMI, Ethernet, I²C, UART/USART, USB
• Peripherals: DMA, LVD, PWM, WDT
• Number Of I /o: 100
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 124K x 8
• Voltage - Supply (vcc/vdd): 2.85 V ~ 3.6 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

(4) Baud rate
The baud rate is obtained by the following equation.
The baud rate error is obtained by the following equation.
Remark
When using the internal clock, the equation will be as follows (when using the ASCKC0 pin as clock at
UARTC0, calculate using the above equation).
Remark
When using the internal clock, the equation will be as follows (when using the ASCKC0 pin input as the
clock for UARTC0, calculate the baud rate error using the above equation).
Cautions 1. The baud rate error during transmission must be within the error tolerance on the
n = 0 to 5 (V850ES/JH3-E)
n = 0 to 7 (V850ES/JJ3-E)
Baud rate =
Baud rate =
Error (%) =
Error (%) =
2. The baud rate error during reception must satisfy the range indicated in (5) Allowable
f
f
m = Value set using the UCnCTL1.UCnCKS3 to UCnCTL1.UCnCKS0 bits (m = 0 to 10)
k = Value set using the UCnCTL2.UCnBRS7 to UCnCTL2.UCnBRS0 bits (k = 4 to 255)
UCLK
XX
: Main clock frequency
receiving side.
baud rate range during reception.
= Frequency of base clock selected by the UCnCTL1.UCnCKS3 to UCnCTL1.UCnCKS0 bits
CHAPTER 17 ASYNCHRONOUS SERIAL INTERFACE C (UARTC)
=
Actual baud rate (baud rate with error)
2
2 × k × Target baud rate
f
2 × k
2
UCLK
Target baud rate (correct baud rate)
m+1
m+1
f
XX
× k
× k × Target baud rate
[bps]
[bps]
f
UCLK
f
XX
User’s Manual U19601EJ2V0UD
− 1 × 100 [%]
− 1 × 100 [%]
− 1 × 100 [%]
835