C8051F064EK Silicon Laboratories Inc, C8051F064EK Datasheet - Page 303
C8051F064EK
Manufacturer Part Number
C8051F064EK
Description
KIT EVAL FOR C8051F064
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F064EK
Contents
Evaluation Board, Power Supply, USB Cables, Adapter and Documentation
Processor To Be Evaluated
C8051F06x
Interface Type
USB
Silicon Manufacturer
Silicon Labs
Core Architecture
8051
Silicon Core Number
C8051F064
Silicon Family Name
C8051F06x
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F064
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1219
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25.
The Programmable Counter Array (PCA0) provides enhanced timer functionality while requiring less CPU
intervention than the standard 8051 counter/timers. PCA0 consists of a dedicated 16-bit counter/timer and
six 16-bit capture/compare modules. Each capture/compare module has its own associated I/O line
(CEXn) which is routed through the Crossbar to Port I/O when enabled (See
3 and the Priority Crossbar Decoder” on page
base that can select between six inputs as its source: system clock, system clock divided by four, system
clock divided by twelve, the external oscillator clock source divided by 8, Timer 0 overflow, or an external
clock signal on the ECI line. Each capture/compare module may be configured to operate independently in
one of six modes: Edge-Triggered Capture, Software Timer, High-Speed Output, Frequency Output, 8-Bit
PWM, or 16-Bit PWM (each is described in
the system controller's Special Function Registers. The basic PCA block diagram is shown in Figure 25.1.
Programmable Counter Array
Capture/Compare
Module 0
SYSCLK/12
Timer 0 Overflow
SYSCLK
External Clock/8
SYSCLK/4
ECI
Capture/Compare
Module 1
CLOCK
MUX
PCA
Figure 25.1. PCA Block Diagram
16-Bit Counter/Timer
Capture/Compare
Section
Module 2
Crossbar
Port I/O
205). The counter/timer is driven by a programmable time-
Rev. 1.2
25.2). The PCA is configured and controlled through
C8051F060/1/2/3/4/5/6/7
Capture/Compare
Module 3
Capture/Compare
Section “18.1. Ports 0 through
Module 4
Capture/Compare
Module 5
303
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