UPD78F1203MC-CAB-AX Renesas Electronics America, UPD78F1203MC-CAB-AX Datasheet - Page 729

• Manufacturer Part Number: UPD78F1203MC-CAB-AX
• Description: MCU 16BIT 78K0R/LX3 30-SSOP
• Manufacturer: Renesas Electronics America
• Series: 78K0R/Ix3r

Specifications of UPD78F1203MC-CAB-AX

• Core Processor: 78K/0R
• Core Size: 16-Bit
• Speed: 40MHz
• Connectivity: 3-Wire SIO, I²C, LIN, UART/USART
• Peripherals: DMA, LVD, POR, PWM, WDT
• Number Of I /o: 21
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

13.6.5 Calculating baud rate
(1) Baud rate calculation expression
The baud rate for UART (UART0, UART1) communication can be calculated by the following expressions.
The operation clock (f
mode register 0n (SMR0n).
(Baud rate) = {Operation clock (MCK) frequency of target channel} ÷ (SDR0n[15:9] + 1) ÷ 2 [bps]
Caution Setting serial data register 0n (SDR0n) SDR0n[15:9] = (0000000B, 0000001B) is prohibited.
Remarks 1.
2.
When UART is used, the value of SDR0n[15:9] is the value of bits 15 to 9 of the SDR0n
register (0000010B to 1111111B) and therefore is 2 to 127.
n: Channel number (n = 0 to 3)
MCK
) is determined by serial clock select register 0 (SPS0) and bit 15 (CKS0n) of serial
CHAPTER 13 SERIAL ARRAY UNIT
User’s Manual U19678EJ1V1UD
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