MCF52223 FREESCALE [Freescale Semiconductor, Inc], MCF52223 Datasheet - Page 7

• Manufacturer Part Number: MCF52223
• Description: Microcontroller Data Sheet
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Freescale Semiconductor
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— Toggle-on-overflow feature for pulse-width modulator (PWM) generation
— One dual-mode pulse accumulation channel
Pulse-width modulation timer
— Operates as eight channels with 8-bit resolution or four channels with 16-bit resolution
— Programmable period and duty cycle
— Programmable enable/disable for each channel
— Software selectable polarity for each channel
— Period and duty cycle are double buffered. Change takes effect when the end of the current
— Programmable center or left aligned outputs on individual channels
— Four clock sources (A, B, SA, and SB) provide for a wide range of frequencies
— Emergency shutdown
Two periodic interrupt timers (PITs)
— 16-bit counter
— Selectable as free running or count down
Real-Time Clock (RTC)
— Maintains system time-of-day clock
— Provides stopwatch and alarm interrupt functions
Software watchdog timer
— 32-bit counter
— Low power mode support
Clock generation features
— 1 to 48 MHz crystal, 8 MHz on-chip relaxation oscillator, or external oscillator reference
— Trimmed relaxation oscillator
— 2 to 10 MHz reference frequency for normal PLL mode with a pre-divider programmable
— System can be clocked from PLL or directly from crystal oscillator or relaxation oscillator
— Low power modes supported
— 2
Interrupt controller
— Uniquely programmable vectors for all interrupt sources
— Fully programmable level and priority for all peripheral interrupt sources
— Seven external interrupt signals with fixed level and priority
— Unique vector number for each interrupt source
— Ability to mask any individual interrupt source or all interrupt sources (global mask-all)
period is reached (PWM counter reaches zero) or when the channel is disabled.
options
from 1 to 8
n
(n ≤ 0 ≤ 15) low-power divider for extremely low frequency operation
MCF52223 ColdFire® Microcontroller Data Sheet, Rev. 1
Preliminary
MCF52223 Family Configurations
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