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MCF52230 bảng dữ liệu(PDF) 8 Page - Freescale Semiconductor, Inc |
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MCF52230 bảng dữ liệu(HTML) 8 Page - Freescale Semiconductor, Inc |
8 / 48 page MCF52235 ColdFire® Microcontroller Data Sheet, Rev. 0 Preliminary MCF52235 Family Configurations Freescale Semiconductor 8 — Single 16-bit input pulse accumulator — 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 period is reached (PWM counter reaches zero) or when the channel is disabled. — 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 — 25 MHz crystal input — On-chip PLL can generate core frequencies up to maximum 60MHz operating frequency — Provides clock for integrated ePHY • Dual Interrupt Controllers (INTC0/INTC1) — Support for multiple interrupt sources organized as follows: – Fully-programmable interrupt sources for each peripheral – 7 fixed-level interrupt sources – Seven external interrupt signals — Unique vector number for each interrupt source — Ability to mask any individual interrupt source or all interrupt sources (global mask-all) — Support for hardware and software interrupt acknowledge (IACK) cycles — Combinatorial path to provide wake-up from low power modes |
Số phần tương tự - MCF52230 |
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Mô tả tương tự - MCF52230 |
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