C8051F411EK Silicon Laboratories Inc, C8051F411EK Datasheet - Page 33
![KIT EVAL FOR C8051F411](/photos/9/25/92547/c8051f411ek_sml.jpg)
C8051F411EK
Manufacturer Part Number
C8051F411EK
Description
KIT EVAL FOR C8051F411
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F411EK
Contents
Evaluation Board, CD-ROM, USB Cable, Batteries and User Guide
Processor To Be Evaluated
C8051F41x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F411
Silicon Family Name
C8051F41x
Kit Contents
LCD Based Evaluation Board, USB Cable, Software CD And Quick-Start Guide
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
Silicon Laboratories C8051F41x
For Use With
336-1315 - KIT REF DESIGN VOICE RECORD F41X
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1317
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1.12. Port Input/Output
C8051F41x devices include up to 24 I/O pins. Port pins are organized as three byte-wide ports. The port
pins behave like typical 8051 ports with a few enhancements. Each port pin can be configured as a digital
or analog I/O pin. Pins selected as digital I/O can be configured for push-pull or open-drain operation. The
“weak pullups” that are fixed on typical 8051 devices may be individually or globally disabled to save
power.
The Digital Crossbar allows mapping of internal digital system resources to port I/O pins. On-chip coun-
ter/timers, serial buses, hardware interrupts, and other digital signals can be configured to appear on the
port pins using the Crossbar control registers. This allows the user to select the exact mix of general-pur-
pose port I/O, digital, and analog resources needed for the application.
Highest
Priority
Lowest
Priority
SYSCLK
Outputs
SMBus
T0, T1
UART
P0
P1
P2
PCA
CP0
CP1
SPI
(P0.0-P0.7)
(P1.0-P1.7)
(P2.0-P2.7)
Figure 1.11. Port I/O Functional Block Diagram
2
4
2
4
7
2
8
8
8
Rev. 1.1
PnSKIP Registers
XBR0, XBR1,
Crossbar
Decoder
Priority
Digital
8
8
8
P0MASK, P0MATCH
P1MASK, P1MATCH
C8051F410/1/2/3
Registers
Cells
Cells
Cell
I/O
I/O
I/O
P0
P1
P2
P2.3–2.6 available on
PnMDIN Registers
C8051F410/2
PnMDOUT,
P0.0
P0.7
P1.0
P1.7
P2.0
P2.7
33
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