C8051F017R Silicon Laboratories Inc, C8051F017R Datasheet - Page 148

• 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

19.2.2. Mode 1: 16-bit Counter/Timer with Auto-Reload
The Counter/Timer with Auto-Reload mode sets the TF2 timer overflow flag when the counter/timer register
overflows from 0xFFFF to 0x0000. An interrupt is generated if enabled. On overflow, the 16-bit value held in the
two capture registers (RCAP2H, RCAP2L) is automatically loaded into the counter/timer register and the timer is
restarted.
Counter/Timer with Auto-Reload mode is selected by clearing the CP/RL2 bit. Setting TR2 to logic 1 enables and
starts the timer. Timer 2 can use either the system clock or transitions on an external input pin as its clock source, as
specified by the C/T2 bit. If EXEN2 is set to logic 1, a high-to-low transition on T2EX will also cause Timer 2 to
be reloaded. If EXEN2 is cleared, transitions on T2EX will be ignored.
SYSCLK
T2EX
T2
Crossbar
Crossbar
12
EXEN2
TR2
0
1
Figure 19.12. T2 Mode 1 Block Diagram
0
1
CKCON
M
T
2
M
T
1
M
T
0
Rev. 1.7
Reload
TCLK
RCAP2L
TL2
RCAP2H
TH2
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
CP/RL2
EXEN2
RCLK
TCLK
EXF2
C/T2
TR2
TF2
Interrupt
148