Family Configurations
— Low power consumption
— OTG protocol logic
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Fast Ethernet controller (FEC)
— 10/100 BaseT/TX capability, half duplex or full duplex
— On-chip transmit and receive FIFOs
— Built-in dedicated DMA controller
— Memory-based flexible descriptor rings
Mini-FlexBus
— External bus interface available on 144 pin packages
— Supports glueless interface with 8-bit ROM/flash/SRAM/simple slave peripherals. Can address up to 2 Mbytes of
addresses
— 2 chip selects (FB_CS[1:0])
— Non-multiplexed mode: 8-bit dedicated data bus, 20-bit address bus
— Multiplexed mode: 16-bit data and 20-bit address bus
— FB_CLK output to support synchronous memories
— Programmable base address, size, and wait states to support slow peripherals
— Operates at up to 40 MHz (bus clock) in 1:2 mode or up to 80 MHz (core clock) in 1:1 mode
Three universal asynchronous/synchronous receiver transmitters (UARTs)
— 16-bit divider for clock generation
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— 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 two 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
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Two I2C modules
— Interchip bus interface for EEPROMs, LCD controllers, A/D converters, and keypads
— Fully compatible with industry-standard I2C bus
— Master and slave modes support multiple masters
— Automatic interrupt generation with programmable level
Queued serial peripheral interface (QSPI)
— Full-duplex, three-wire synchronous transfers
— Up to three chip selects available
— Master mode operation only
— Programmable bit rates up to half the CPU clock frequency
— Up to 16 pre-programmed transfers
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Fast analog-to-digital converter (ADC)
— Eight analog input channels
— 12-bit resolution
— Minimum 1.125 μs conversion time
— Simultaneous sampling of two channels for motor control applications
— Single-scan or continuous operation
— Optional interrupts on conversion complete, zero crossing (sign change), or under/over low/high limit
— Unused analog channels can be used as digital I/O
MCF52259 ColdFire Microcontroller, Rev. 0
Freescale Semiconductor
7
FREESCALE [ Freescale ]
