C8051F023R Silicon Laboratories Inc, C8051F023R Datasheet - Page 209

• Manufacturer Part Number: C8051F023R
• Description: IC 8051 MCU 64K FLASH 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F02xr

Specifications of C8051F023R

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 32
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x8b, 8x10b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: 336-1035-2

20.1.4. Mode 3: 9-Bit UART, Variable Baud Rate
Mode 3 uses the Mode 2 transmission protocol with the Mode 1 baud rate generation. Mode 3 operation transmits
11 bits: a start bit, 8 data bits (LSB first), a programmable ninth data bit, and a stop bit. The baud rate is derived from
Timer 1 or Timer 2 overflows, as defined by Equation 20.1 and Equation 20.2. Multiprocessor communications and
hardware address recognition are supported, as described in
Figure 20.6. UART Modes 1, 2, and 3 Interconnect Diagram
RS-232
MCU
TX
RX
RS-232
LEVEL
XLTR
OR
Rev. 1.4
Section
RX
RX
TX
TX
C8051Fxxx
20.2.
C8051Fxxx
C8051F020/1/2/3
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