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MCF52221 数据表(PDF) 5 Page - Freescale Semiconductor, Inc |
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MCF52221 数据表(HTML) 5 Page - Freescale Semiconductor, Inc |
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5 / 56 page  MCF52223 Family Configurations MCF52223 ColdFire® Microcontroller Data Sheet, Rev. 1 Preliminary Freescale Semiconductor 5 1.2 Features The MCF52223 family includes the following features: • Version 2 ColdFire variable-length RISC processor core — Static operation — 32-bit address and data paths on-chip — Up to 80 MHz processor core frequency — Sixteen general-purpose, 32-bit data and address registers — Implements ColdFire ISA_A with extensions to support the user stack pointer register and four new instructions for improved bit processing (ISA_A+) — Multiply-Accumulate (MAC) unit with 32-bit accumulator to support 16 × 16 → 32 or 32 × 32 → 32 operations — Illegal instruction decode that allows for 68K emulation support • System debug support — Real time trace for determining dynamic execution path — Background debug mode (BDM) for in-circuit debugging (DEBUG_B+) — Real time debug support, with six hardware breakpoints (4 PC, 1 address and 1 data) that can be configured into a 1- or 2-level trigger • On-chip memories — 32-Kbyte dual-ported SRAM on CPU internal bus, supporting core and DMA access with standby power supply support — 256 Kbytes of interleaved Flash memory supporting 2-1-1-1 accesses • Power management — Fully static operation with processor sleep and whole chip stop modes — Very rapid response to interrupts from the low-power sleep mode (wake-up feature) — Clock enable/disable for each peripheral when not used — Software controlled disable of external clock output for low power consumption • Three universal asynchronous/synchronous receiver transmitters (UARTs) — 16-bit divider for clock generation — Interrupt control logic with maskable interrupts — DMA support — Data formats can be 5, 6, 7 or 8 bits with even, odd or no parity — Up to 2 stop bits in 1/16 increments — Error-detection capabilities — Modem support includes request-to-send (RTS) and clear-to-send (CTS) lines for two UARTs — Transmit and receive FIFO buffers |
类似零件编号 - MCF52221 |
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类似说明 - MCF52221 |
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