C8051F560-TB Silicon Laboratories Inc, C8051F560-TB Datasheet - Page 277
![BOARD PROTOTYPE W/C8051F560](/photos/9/25/92557/c8051f560-tb_sml.jpg)
C8051F560-TB
Manufacturer Part Number
C8051F560-TB
Description
BOARD PROTOTYPE W/C8051F560
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Datasheet
1.TOOLSTICK560DC.pdf
(302 pages)
Specifications of C8051F560-TB
Contents
Board
Processor To Be Evaluated
C8051F56x
Processor Series
C8051F56x
Interface Type
USB
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
1.8 V to 5.25 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051F55x, C8051F56x, C8051F57x
For Use With
336-1691 - KIT DEVELOPMENT FOR C8051F560
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1694
- Current page: 277 of 302
- Download datasheet (3Mb)
26. Programmable Counter Array
The Programmable Counter Array (PCA0) provides enhanced timer functionality while requiring less CPU
intervention than the standard 8051 counter/timers. The PCA 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. The counter/timer is driven by a
programmable timebase that can select between six sources: system clock, system clock divided by four,
system clock divided by twelve, the external oscillator clock source divided by 8, Timer 0 overflows, or an
external clock signal on the ECI input pin. Each capture/compare module may be configured to operate
independently in one of six modes: Edge-Triggered Capture, Software Timer, High-Speed Output, Fre-
quency Output, 8 to 11-Bit PWM, or 16-Bit PWM (each mode is described in Section
“26.3. Capture/Compare Modules” on page 279). The external oscillator clock option is ideal for real-time
clock (RTC) functionality, allowing the PCA to be clocked by a precision external oscillator while the inter-
nal oscillator drives the system clock. The PCA is configured and controlled through the system controller's
Special Function Registers. The PCA block diagram is shown in Figure 26.1
Important Note: The PCA Module 5 may be used as a watchdog timer (WDT), and is enabled in this mode
following a system reset. Access to certain PCA registers is restricted while WDT mode is enabled .
See Section 26.4 for details.
Capture/Compare
Module 0
SYSCLK/12
SYSCLK/4
Timer 0 Overflow
ECI
SYSCLK
External Clock/8
Capture/Compare
Module 1
CLOCK
MUX
PCA
Figure 26.1. PCA Block Diagram
16-Bit Counter/Timer
Capture/Compare
Module 2
Crossbar
Rev. 1.1
Port I/O
Capture/Compare
Module 3
C8051F55x/56x/57x
Capture/Compare
Module 4
Capture/Compare
Module 5 / WDT
277
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