MCF5272CVF66J Freescale Semiconductor, MCF5272CVF66J Datasheet - Page 355
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MCF5272CVF66J
Manufacturer Part Number
MCF5272CVF66J
Description
IC MCU 166MHZ 196MAPBGA
Manufacturer
Freescale Semiconductor
Series
MCF527xr
Specifications of MCF5272CVF66J
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
66MHz
Connectivity
EBI/EMI, Ethernet, I²C, SPI, UART/USART, USB
Peripherals
DMA, WDT
Number Of I /o
32
Program Memory Size
16KB (4K x 32)
Program Memory Type
ROM
Ram Size
1K x 32
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
196-MAPBGA
Processor Series
MCF527x
Core
ColdFire V2
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
Leaded Process Compatible
No
Rohs Compliant
No
Peak Reflow Compatible (260 C)
No
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
No
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5272CVF66J
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 15
Timer Module
This chapter describes configuration and operation of the four general-purpose timer modules, timer 0, 1,
2 and 3.
15.1
The timer module has four identical general-purpose 16-bit timers and a software watchdog timer,
described in
Each general-purpose timer consists of a timer mode register (TMRn), a timer capture register (TCAPn),
a 16-bit timer counter (TCNn), a timer reference register (TRRn), and a timer event register (TERn). The
TMRs contain the prescaler value programmed by the user. The four timer units have the following
features:
15.2
The timer units consist of four identical, independent 16-bit timers, timers 0–3. For timers 0 and 1, the
clock input to the prescaler is selected from the main clock (divided by 1 or 16) or from the corresponding
timer input (TIN0 or TIN1) pin. For timers 2 and 3, the clock input to the prescaler can be selected only
from the main clock (divided by 1 or 16). TIN is internally synchronized to the internal clock, with a
synchronization delay between two and three main clocks. The clock input source is selected by the CLK
bits of the corresponding timer mode register (TMR0–TMR3). The prescaler is programmed to divide the
clock input by values from 1 to 256. The output of the prescaler is used as an input to the 16-bit counter.
The maximum timer resolution is one system clock cycle (15 nS at 66 MHz). The maximum period (the
reference value is all ones) is 268,435,456 cycles = 2
The timer can be configured to count until a reference is reached at which point it can either start a new
time count immediately or continue to run. The free run/restart bit, TMRn[FRR], selects each mode. Upon
reaching the reference value, the TER0 or TER1 bit is set, and an interrupt is issued if the output reference
interrupt enable bit, TMR[ORI], is set.
Freescale Semiconductor
•
•
•
•
•
•
Maximum period of 4 seconds at 66 MHz
15-nS resolution at 66 MHz
Programmable sources for the clock input, including external clock
Input capture capability with programmable trigger edge on input pins
Output compare with programmable mode for the output pins
Free run and restart modes
Overview
Timer Operation
Chapter 6, “System Integration Module
MCF5272 ColdFire
®
Integrated Microprocessor User’s Manual, Rev. 3
(SIM).”
4
× 2
8
× 2
16
(4 seconds at 66 MHz).
15-1
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