C8051F017R Silicon Laboratories Inc, C8051F017R Datasheet - Page 154
C8051F017R
Manufacturer Part Number
C8051F017R
Description
IC 8051 MCU 32K FLASH 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F01xr
Specifications of C8051F017R
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
8
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 4x10b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Other names
336-1042-2
Q1057388
Q1057388
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F017R
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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20. PROGRAMMABLE COUNTER ARRAY
The Programmable Counter Array (PCA) 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 five
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 Section 15.1 for details on configuring the Crossbar).
The counter/timer is driven by a configurable timebase that can select between four inputs as its source: system
clock divided by twelve, system clock divided by four, Timer 0 overflow, or an external clock signal on the ECI
line. The PCA is configured and controlled through the system controller’s Special Function Registers. The basic
PCA block diagram is shown in Figure 20.1.
T0 Overflow
System
Clock
Capture/Compare
Module 0
/12
/4
CPS=11
10
Figure 20.1. PCA Block Diagram
01
Capture/Compare
00
Module 1
Crossbar
16-Bit Counter/Timer
Rev. 1.7
Port I/O
Capture/Compare
Module 2
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
Capture/Compare
Module 3
Capture/Compare
Module 4
154
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