MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 401
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MCF5270CAB100
Manufacturer Part Number
MCF5270CAB100
Description
MCU V2 COLDFIRE 64K SRAM 160-QFP
Manufacturer
Freescale Semiconductor
Series
MCF527xr
Specifications of MCF5270CAB100
Core Processor
Coldfire V2
Core Size
32-Bit
Speed
100MHz
Connectivity
EBI/EMI, Ethernet, I²C, SPI, UART/USART
Peripherals
DMA, WDT
Number Of I /o
39
Program Memory Type
ROMless
Ram Size
64K x 8
Voltage - Supply (vcc/vdd)
1.4 V ~ 1.6 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
160-QFP
Processor Series
MCF527x
Core
ColdFire V2
3rd Party Development Tools
JLINK-CF-BDM26, EWCF
Development Tools By Supplier
NNDK-MOD5272-KIT, NNDK-MOD5270-KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Program Memory Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MCF5270CAB100
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 21
Programmable Interrupt Timer Modules
(PIT0–PIT3)
21.1
This chapter describes the operation of the four programmable interrupt timer modules,
PIT0–PIT3.
21.1.1 Overview
The PIT is a 16-bit timer that provides precise interrupts at regular intervals with minimal
processor intervention. The timer can either count down from the value written in the modulus
register, or it can be a free-running down-counter.
21.1.2 Block Diagram
Freescale Semiconductor
Clock (f
Internal Bus
sys/2
Introduction
)
The GPIO module must be configured to enable the peripheral
function of the appropriate pins (refer to
Purpose I/O
Prescaler
PRE[3:0]
DOZE
DBG
EN
Module”) prior to configuring the PIT modules.
OVW
Figure 21-1. PIT Block Diagram
16-bit PIT Counter
16-bit PCNTRn
MCF5271 Reference Manual, Rev. 2
16-bit PMRn
Internal Bus
Internal Bus
NOTE
RLD
Load
Counter
COUNT = 0
Chapter 12, “General
PIE
PIF
To Interrupt
Controller
21-1
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