C8051T606DK Silicon Laboratories Inc, C8051T606DK Datasheet - Page 100
C8051T606DK
Manufacturer Part Number
C8051T606DK
Description
KIT DEVELOPMENT FOR C8051T606
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Datasheets
1.C8051T600EDB.pdf
(188 pages)
2.C8051T606TDB.pdf
(1 pages)
3.C8051T606DK.pdf
(16 pages)
4.C8051T606TDB.pdf
(14 pages)
Specifications of C8051T606DK
Contents
Board, Adapter, Cable, CD, Power Supply
Processor To Be Evaluated
C8051T606x
Interface Type
RS-232, USB
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
3.3 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051T606
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1666
- C8051T600EDB PDF datasheet
- C8051T606TDB PDF datasheet #2
- C8051T606DK PDF datasheet #3
- C8051T606TDB PDF datasheet #4
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- Download datasheet (898Kb)
C8051T600/1/2/3/4/5/6
21. Oscillators and Clock Selection
C8051T600/1/2/3/4/5/6 devices include a programmable internal high-frequency oscillator and an external
oscillator drive circuit. The internal high-frequency oscillator can be enabled/disabled and calibrated using
the OSCICN and OSCICL registers, as shown in Figure 21.1. The system clock can be sourced by the
external 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.
OSCICL
OSCICN
RC Mode
VDD
EXTCLK
EN
Programmable
n
Internal Clock
Generator
SYSCLK
C Mode
EXTCLK
Input
EXTCLK
OSC
Circuit
CMOS Mode
EXTCLK
OSCXCN
Figure 21.1. Oscillator Options
21.1. System Clock Selection
The CLKSL bit in register OSCICN selects which oscillator source is used as the system clock. CLKSL
must be set to 1 for the system clock to run from the external oscillator; however the external oscillator may
still clock certain peripherals (timers, PCA) when the internal oscillator is selected as the system clock. The
system clock may be switched on-the-fly between the internal oscillator and external oscillator, as long as
the selected clock source is enabled and running.
The internal high-frequency oscillator requires little start-up time and may be selected as the system clock
immediately following the register write, which enables the oscillator. The external RC and C modes also
typically require no startup time.
100
Rev. 1.2
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