C8051F000DK-A Silicon Laboratories Inc, C8051F000DK-A Datasheet - Page 146
C8051F000DK-A
Manufacturer Part Number
C8051F000DK-A
Description
DEV KIT FOR C8051F000/F001/F002
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051F005-TB.pdf
(171 pages)
Specifications of C8051F000DK-A
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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19.2.
Timer 2 is a 16-bit counter/timer formed by the two 8-bit SFRs: TL2 (low byte) and TH2 (high byte). As with
Timers 0 and 1, Timer 2 can use either the system clock or transitions on an external input pin as its clock source.
The Counter/Timer Select bit C/T2 bit (T2CON.1) selects the clock source for Timer 2. Clearing C/T2 selects the
system clock as the input for the timer (divided by either one or twelve as specified by the Timer Clock Select bit
T2M in CKCON). When C/T2 is set to 1, high-to-low transitions at the T2 input pin increment the counter/timer
register. (Refer to Section 14 for information on selecting and configuring external I/O pins.) Timer 2 can also be
used to start an ADC Data Conversion.
Timer 2 offers capabilities not found in Timer 0 and Timer 1.
Counter/Timer with Capture, 16-bit Counter/Timer with Auto-Reload or Baud Rate Generator Mode. Timer 2’s
operating mode is selected by setting configuration bits in the Timer 2 Control (T2CON) register. Below is a
summary of the Timer 2 operating modes and the T2CON bits used to configure the counter/timer. Detailed
descriptions of each mode follow.
Timer 2
RCLK
X
0
0
0
1
1
TCLK
X
0
0
1
0
1
CP/RL2
X
X
X
X
1
0
TR2
1
1
1
1
1
0
Rev. 1.7
Mode
16-bit Counter/Timer with Capture
16-bit Counter/Timer with Auto-Reload
Baud Rate Generator for TX
Baud Rate Generator for RX
Baud Rate Generator for TX and RX
Off
It operates in one of three modes: 16-bit
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
146
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