C8051F707-GMR Silicon Labs, C8051F707-GMR Datasheet - Page 171
C8051F707-GMR
Manufacturer Part Number
C8051F707-GMR
Description
8-bit Microcontrollers - MCU 16kB Cap Sense
Manufacturer
Silicon Labs
Datasheet
1.C8051F709-GQR.pdf
(306 pages)
Specifications of C8051F707-GMR
Rohs
yes
Core
8051
Processor Series
C8051
Data Bus Width
8 bit
- Current page: 171 of 306
- Download datasheet (2Mb)
27. Oscillators and Clock Selection
C8051F70x/71x devices include a programmable internal high-frequency oscillator and an external oscilla-
tor drive circuit. The internal high-frequency oscillator can be enabled/disabled and calibrated using the
OSCICN and OSCICL registers, as shown in Figure 27.1. The system clock can be sourced by the exter-
nal oscillator circuit or the internal oscillator (default). The internal oscillator offers a selectable post-scaling
feature, which is initially set to divide the clock by 8.
27.1. System Clock Selection
The system clock source for the MCU can be selected using the CLKSEL register. The clock selected as
the system clock can be divided by 1, 2, 4, 8, 16, 32, 64, or 128. When switching between two clock divide
values, the transition may take up to 128 cycles of the undivided clock source. The CLKRDY flag can be
polled to determine when the new clock divide value has been applied. The clock divider must be set to
"divide by 1" when entering Suspend mode. The system clock source may also be switched on-the-fly. The
switchover takes effect after one clock period of the slower oscillator.
Option 4 – CMOS Mode
Option 1 – Crystal Mode
Option 3 – C Mode
Option 2 – RC Mode
XTAL2
VDD
XTAL2
XTAL2
10M
XTAL1
XTAL2
Figure 27.1. Oscillator Options
OSCICL
Circuit
Input
Programmable
Internal Clock
Generator
OSCXCN
Rev. 1.0
OSC
EN
OSCICN
Clock Divider
n
C8051F70x/71x
CLKSEL
Clock Divider
n
CLKRDY
SYSCLK
171
Related parts for C8051F707-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: