C8051F020-TB Silicon Laboratories Inc, C8051F020-TB Datasheet - Page 236
![BOARD PROTOTYPING W/C8051F020](/photos/28/94/289414/tqfp-100_sml.jpg)
C8051F020-TB
Manufacturer Part Number
C8051F020-TB
Description
BOARD PROTOTYPING W/C8051F020
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F020-TB
Contents
Board
Processor To Be Evaluated
C8051F02x
Interface Type
USB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F020
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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C8051F020/1/2/3
22.1.2. 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 over-
flows 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 (T2) 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 a Timer 2
reload, and a Timer 2 interrupt if enabled. If EXEN2 is logic 0, transitions on T2EX will be ignored.
236
SYSCLK
T2EX
T2
12
Crossbar
EXEN2
M
T
4
CKCON
M
0
1
T
2
Figure 22.12. T2 Mode 1 Block Diagram
M
T
1
M
T
0
0
1
TR2
Rev. 1.4
Reload
TCLK
RCAP2L
TL2
RCAP2H
TH2
CP/RL2
EXEN2
RCLK0
TCLK0
EXF2
C/T2
TR2
TF2
Interrupt
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