C8051F347-GMR Silicon Labs, C8051F347-GMR Datasheet - Page 245
C8051F347-GMR
Manufacturer Part Number
C8051F347-GMR
Description
8-bit Microcontrollers - MCU 25 MIPS 32KB 10 ADC
Manufacturer
Silicon Labs
Datasheet
1.C8051F349-GMR.pdf
(276 pages)
Specifications of C8051F347-GMR
Rohs
yes
Core
8051
Data Bus Width
8 bit
Processor Series
C8051
- Current page: 245 of 276
- Download datasheet (2Mb)
21.2.3. Timer 2 Capture Modes: USB Start-of-Frame or LFO Falling Edge
When T2CE = ‘1’, Timer 2 will operate in one of two special capture modes. The capture event can be
selected between a USB Start-of-Frame (SOF) capture, and a Low-Frequency Oscillator (LFO) Falling
Edge capture, using the T2CSS bit. The USB SOF capture mode can be used to calibrate the system clock
or external oscillator against the known USB host SOF clock. The LFO falling-edge capture mode can be
used to calibrate the internal Low-Frequency Oscillator against the internal High-Frequency Oscillator or
an external clock source. When T2SPLIT = ‘0’, Timer 2 counts up and overflows from 0xFFFF to 0x0000.
Each time a capture event is received, the contents of the Timer 2 registers (TMR2H:TMR2L) are latched
into the Timer 2 Reload registers (TMR2RLH:TMR2RLL). A Timer 2 interrupt is generated if enabled.
External Clock / 8
SYSCLK / 12
SYSCLK
T
F
H
2
Figure 21.6. Timer 2 Capture Mode (T2SPLIT = ‘0’)
T
F
2
L
USB Start-of-Frame (SOF)
Low-Frequency Oscillator
TMR2CN
N
T
F
2
L
E
C
E
T
2
S
P
T
2
L
T
I
Falling Edge
T
R
2
T
C
S
S
2
C8051F340/1/2/3/4/5/6/7/8/9/A/B/C/D
C
T
2
X
L
K
0
1
T
M
H
3
M
T
3
L
CKCON
M
T
H
2
M
T
2
L
0
1
M
T
1
M
T
0
S
C
A
1
S
C
A
0
T2CSS
TR2
Rev. 1.3
0
1
Enable
Capture
TCLK
Overflow
TL2
TMR2RLL TMR2RLH
TMR2L
Interrupt
To SMBus
TMR2H
To ADC,
SMBus
245
Related parts for C8051F347-GMR
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
KIT EVALUATION FOR CP2102
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT EVAL FOR CP2103 USB TO UART
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT EVAL FOR CP2201 ETH CTRLR
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DAUGHTER CARD CAP TOUCH SENSE
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT STARTER CAP TOUCH SENSE
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT FOR C8051F320/F321
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEVKIT-F120/21/22/23/24/25/26/27
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT FOR C8051F310/F311
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT F220/221/226/230/231/236
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT F300/301/302/303/304/305
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT FOR C8051F330/F331
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT FOR F005/006/007
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
DEV KIT FOR F020/F021/F022/F023
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT DEV FOR C8051F34X
Manufacturer:
Silicon Laboratories Inc
Datasheet:
Part Number:
Description:
KIT DEV FOR C8051F41X
Manufacturer:
Silicon Laboratories Inc
Datasheet: