MCF5270CAB100 Freescale Semiconductor, MCF5270CAB100 Datasheet - Page 401

• 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

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