C8051F017R Silicon Laboratories Inc, C8051F017R Datasheet - Page 133

• Manufacturer Part Number: C8051F017R
• Description: IC 8051 MCU 32K FLASH 32LQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F01xr

Specifications of C8051F017R

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 8
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 4x10b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: 336-1042-2; Q1057388

The Timer 2 overflow rate, when in Baud Rate Generator Mode and using an internal clock source, is determined
solely by the Timer 2 16-bit reload value (RCAP2H:RCAP2L). The Timer 2 clock source is fixed at SYSCLK/2.
The Timer 2 overflow rate can be calculated as follows:
Timer 2 can be selected as the baud rate generator for RX and/or TX by setting RCLK (T2CON.5) and/or TCLK
(T2CON.4), respectively. When either RCLK or TCLK is set to logic 1, Timer 2 interrupts are automatically
disabled and the timer is forced into Baud Rate Generator Mode with SYSCLK/2 as its clock source. If a different
timebase is required, setting the C/T2 bit (T2CON.1) to logic 1 will allow Timer 2 to be clocked from the external
input pin T2. See the Timers section for complete timer configuration details.
133
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
Figure 18.5. UART Modes 1, 2, and 3 Interconnect Diagram
T2_OVERFLOWRATE = (SYSCLK/2) / (65536 – [RCAP2H:RCAP2L]).
RS-232
MCU
TX
RX
Rev. 1.7
RS-232
LEVEL
XLTR
OR
TX
RX
TX
RX
C8051Fxxx
C8051Fxxx