UPD70F3201YGC-YEU-A Renesas Electronics America, UPD70F3201YGC-YEU-A Datasheet - Page 332

• Manufacturer Part Number: UPD70F3201YGC-YEU-A
• Description: MCU 32BIT I2C 100TQFP
• Manufacturer: Renesas Electronics America
• Series: V850ES/Sx2r

Specifications of UPD70F3201YGC-YEU-A

• Core Processor: RISC
• Core Size: 32-Bit
• Speed: 20MHz
• Connectivity: CSI, EBI/EMI, I²C, UART/USART
• Peripherals: DMA, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 2.2 V ~ 2.7 V
• Data Converters: A/D 12x10b; D/A 2x8b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

330
(5) Transfer rate during continuous transmission
During continuous transmission, the transfer rate from a stop bit to the next start bit is extended two clocks of
the base clock (Clock) longer than normal. However, on the reception side, the transfer result is not affected
since the timing is initialized by the detection of the start bit.
Representing the 1-bit data length by FL, the stop bit length by FLstp, and the base clock frequency by f
yields the following equation.
Therefore, the transfer rate during continuous transmission is as follows.
FLstp = FL + 2/f
Transfer rate = 11 × FL + 2/f
Start bit
FL
Figure 13-15. Transfer Rate During Continuous Transmission
CHAPTER 13 ASYNCHRONOUS SERIAL INTERFACE n (UARTn)
CKSR
Bit 0
FL
Bit 1
CKSR
FL
1 data frame
User’s Manual U15905EJ2V1UD
Bit 7
FL
Parity bit
FL
Stop bit
FLstp
Start bit
FL
Start bit of
second byte
Bit 0
FL
CKSR