C8051F330DK Silicon Laboratories Inc, C8051F330DK Datasheet - Page 21
![DEV KIT FOR C8051F330/F331](/photos/9/23/92306/c8051f330dk_sml.jpg)
C8051F330DK
Manufacturer Part Number
C8051F330DK
Description
DEV KIT FOR C8051F330/F331
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F330DK
Contents
Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
Processor To Be Evaluated
C8051F33x
Interface Type
RS-232
Operating Supply Voltage
7 V to 15 V
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F330
Silicon Family Name
C8051F33x
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Silicon Laboratories C8051F330, C8051F331
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1264
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1.1.3. Additional Features
The C8051F330/1/2/3/4/5 SoC family includes several key enhancements to the CIP-51 core and periph-
erals to improve performance and ease of use in end applications.
The extended interrupt handler provides 14 interrupt sources into the CIP-51 (as opposed to 7 for the stan-
dard 8051), allowing numerous analog and digital peripherals to interrupt the controller. An interrupt driven
system requires less intervention by the MCU, giving it more effective throughput. The extra interrupt
sources are very useful when building multi-tasking, real-time systems.
Eight reset sources are available: power-on reset circuitry (POR), an on-chip V
when power supply voltage drops below V
Missing Clock Detector, a voltage level detection from Comparator0, a forced software reset, an external
reset pin, and an illegal Flash access protection circuit. Each reset source except for the POR, Reset Input
Pin, or Flash error may be disabled by the user in software. The WDT may be permanently enabled in soft-
ware after a power-on reset during MCU initialization.
The internal oscillator factory calibrated to 24.5 MHz ±2%. This internal oscillator period may be user pro-
grammed in ~0.5% increments. An additional low-frequency oscillator is also available which facilitates
low-power operation. An external oscillator drive circuit is included, allowing an external crystal, ceramic
resonator, capacitor, RC, or CMOS clock source to generate the system clock. If desired, the system clock
source may be switched on-the-fly between both internal and external oscillator circuits. An external oscil-
lator can also be extremely useful in low power applications, allowing the MCU to run from a slow (power
saving) source, while periodically switching to the fast (up to 25 MHz) internal oscillator as needed.
XTAL1
XTAL2
Frequency
Oscillator
Oscillator
Oscillator
External
Internal
Drive
Low
Px.x
Px.x
Clock Select
System
Clock
Figure 1.8. On-Chip Clock and Reset
Comparator 0
+
-
Detector
Missing
C0RSEF
Clock
(one-
shot)
Microcontroller
EN
Extended Interrupt
CIP-51
RST
Core
Handler
as given in Table 10.1 on page 102), a Watchdog Timer, a
WDT
PCA
EN
VDD
Rev. 1.7
System Reset
Supply
Monitor
+
-
Enable
C8051F330/1/2/3/4/5
(Software Reset)
SWRSF
'0'
Power On
Reset
Operation
FLASH
Errant
DD
(wired-OR)
monitor (forces reset
Reset
Funnel
/RST
23
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