mc68ez328 Freescale Semiconductor, Inc, mc68ez328 Datasheet - Page 2

• Manufacturer Part Number: mc68ez328
• Description: Integrated Portable System Processor
• Manufacturer: Freescale Semiconductor, Inc

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The primary features of the MC68EZ328 are as follows:
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Static 68EC000 Core Processor—Identical to MC68EC000 Microprocessor
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— 24-Bit external address bus capable of addressing maximum 4 x 16MB blocks with chip selects CSA,
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System Integration Module (SIM28-EZ), incorporating many functions typically related to external array
logic, such as:
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DRAM Controller
— Support CAS-before-RAS refresh cycles and self-refresh mode DRAM
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UART
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Serial Peripheral Interface Port
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16-Bit General Purpose Counter / Timer
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Key Features
Full compatibility with MC68000 and MC68EC000
32-Bit internal address bus
CSB and 4 x 4 MB blocks with chip selects CSC, CSD
16-Bit on-chip data bus for MC68000 bus operations
Static design allows processor clock to be stopped to provide power savings
2.7 MIPS Performance at 16.58 MHz processor clock and 3.25 MIPS Performance at 20 MHz processor
clock
External M68000 Bus interface with selectable bus sizing for 8-bit and 16-bit data ports
System configuration, programmable address mapping
Glueless interface to SRAM, EPROM, FLASH memory
8 programmable chip selects with wait state generation logic
4 programmable interrupt I/O and with keyboard interrupt capability
5 general purpose, programmable edge/level/polarity interrupt IRQ
Other programmable I/O, multiplexed with peripheral functions up to 47 parallel I/O
Programmable interrupt vector response for on-chip peripheral modules
Low-power mode control
Support 8 bit / 16 bit port DRAM
EDO or Automatic Fast Page Mode for LCDC access
Programmable refresh rate
Support up to 2 banks of DRAM/EDO DRAM
Programmable column address size
Support IrDA physical layer protocol up to 115.2kbps
8 Bytes FIFO on Tx and 12 Bytes FIFO on Rx
16 bit programmable SPI to support external peripherals
Master mode support
Automatic interrupt generation
60-ns resolution at 16.58-MHz system clock
MC68EZ328 Product Brief