1-4 MC68VZ328 User’s Manual
CPU
Built-in emulation function
Dedicated memory space for emulator debug monitor with chip-select
Dedicated interrupt (interrupt level 7) for in-circuit emulation (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
Bootstrap mode function
Capability to initialize system and download programs and data to system memory through
UART
Acceptance of execution command to run program stored in system memory
8-byte-long instruction buffer for 68000 instruction storage and execution
Power management
Fully static HCMOS technology
Programmable clock synthesizer using 32.768 kHz or 38.4kHz external 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 2.7 V to 3.3V
Compact 144-lead thin quad flat pack (TQFP) and MAPBGA
1.2 CPU
The FLX68000 CPU in the MC68VZ328 is an updated implementation of the 68000 32-bit microprocessor
architecture. The main features of the CPU are the following:
Low-power, fully static HCMOS implementation
32-bit address bus and 16-bit data bus
Sixteen 32-bit data and address registers
56 powerful instruction types that support high-level development languages
14 addressing modes and 5 main data types
Seven priority levels for interrupt control
The CPU is completely code compatible with other members of the M68000 families, which means it has
access to a broad base of established real-time kernels, operating systems, languages, applications, and
development tools.