Description
Features:
• Static FLX68000 CPU-identical to MC68EC000 microprocessor
- Full compatibility with MC68000 and MC68EC000
- 32-bit internal address bus
- Static design that allows processor clock to be stopped to provide power savings
- 5.4 MIPS performance at 33 MHz processor clock
- External M68000 bus interface with selectable bus sizing for 8-bit and 16-bit data ports
• System Integration Module (SIM) incorporating many functions typically related to external array
logic, reducing parts counts in design, with functions that include the following:
- System configuration and programmable address mapping
- Glueless interface to SRAM, DRAM, SDRAM, EPROM, and FLASH memory
- Eight programmable chip selects with wait state generation logic
- Four programmable interrupt I/Os, with keyboard interrupt capability
- Five general-purpose, programmable edge/level/polarity interrupt IRQs
- Other programmable I/O, multiplexed with peripheral functions of up to 47 parallel I/O lines
- Programmable interrupt vector response for on-chip peripheral modules
- Low-power mode control
• Synchronous DRAM controller
- Support for CAS-before-RAS refresh cycles and self-refresh mode DRAM
- Support for 8-bit / 16-bit port DRAM
- EDO or Automatic Fast Page Mode for LCDC access
- Programmable refresh rate
- Support for up to two banks of DRAM / EDO DRAM
- Programmable column address size
• 76 general-purpose ports
• Two UART ports
• Two Serial Peripheral Interface (SPI) ports
• Two 16-bit general-purpose counters/timers
- Automatic interrupt generation
- 30 ns resolution at 33 MHz system clock
- Timer input/output pin
• Real-time clock / sampling timer
- Separate power supply for the RTC
- One programmable alarm
- Capability of counting up to 512 days 4 MC68VZ328 Product Brief
- Sampling timer with selectable frequency (4 Hz, 8 Hz, 16 Hz, 32 Hz, 64 Hz, 128 Hz, 256 Hz, 512 Hz)
- Interrupt generation for digitizer sampling or keyboard debouncing
• LCD controller
- Software-programmable screen size (up to 640 x 480) to support single (non-split) monochrome panels
- Capability of directly driving popular LCD drivers/modules from Motorola, Sharp, Hitachi,
Toshiba, and numerous other manufacturers
- Support for up to 16 gray levels out of 16 palettes
- Utilization of system memory as display memory
- LCD contrast control using 8-bit PWM
• Two Pulse Width Modulation (PWM) modules
- Audio-effects support
- 16- and 8-bit resolution
- 5-byte FIFO that provides more flexibility on performance
- Sound and melody generation
• Built-in emulation function
- Dedicated memory space for emulator debug monitor with chip select
- Dedicated interrupt (interrupt level 7) for ICE
- One address-signal comparator and one control-signal comparator, with masking to support
single or multiple hardware execution
- Breakpoint
- One breakpoint instruction insertion unit
• Boot Strap mode function
- Allows user to initialize system and download program/data to system memory through UART
- Accepts execution command to run program stored in system memory
- Provides an 8-byte-long instruction buffer for 68000 instruction storage and execution
• Power management
- Fully static HCMOS technology
- Programmable clock synthesizer using 32.768 kHz / 38.4 kHz crystal for full frequency control
- Low-power stop capabilities
- Modules that can be individually shut down
- Operation from DC to 33 MHz (processor clock)
- Operating voltage of (3.0 ± 10%) V
- Compact 144-lead Thin Quad Flat Pack (TQFP) and MAP BGA
MC68VZ328 Data Sheet
