MOTOROLA

MC68328 PRODUCT INFORMATION

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• LCD Control Module

— Software Programmable Screen Size To Support Single (Non-Split) Monochrome/ STN Panels

— Capable Of Direct Driving Popular LCD Drivers/Modules From Motorola, Sharp, Hitachi, Toshiba etc.

— Support Up To 4 Grey Levels

— Utilize System Memory as Display Memory

• IEEE 1149.1 Boundary Scan Test Access Port (JTAG)

• Operation From DC To 16.67 MHz (Processor Clock)

• Operating Voltages of 3.3V

± 0.3V and 5V ± 0.5V

• Compact 144-Lead Thin Quad Flat Pack (TQFP) Package

SYSTEM INTEGRATION MODULE

The MC68328 system integration module (SIM28) consists of several functions that control the system start-

up, initialization, configuration, and the external bus with a minimum of external devices. The memory interface

allows the user to interface gluelessly with the popular SRAM, EPROM as well as PCMCIA 1.0 memory cards,

with the assistance of chip-select logic, wait states can be programmable. The hardware and software

watchdog timers help the user to do system protections. The interrupt controller accepts and resolves the

priority from internal modules and external generated interrupts and also handles the masking and wake-up

selection control for power control. The low-power logic can be used to control the CPU power dissipation by

altering the frequency or stopping it. The SIM28 is also capable of configuring the pin to allow the user to select

either dedicated I/O or parallel I/O. This feature helps to increase the number of available I/O ports by

reclaiming when the dedicated function is not in used

System Configuration

The MC68328 system configuration logic consists of a system control register (SCR) and which allows the user

to configure operation of the following major functions:

• System Status and Control Logic

• Register Double Mapping

• Bus Error Generation Control

• Protecting the module control registers from access by user programs

VCO/PLL Clock Synthesizer

The clock synthesizer can operate with either an external crystal or an external oscillator for reference, using

the internal phase-locked loop (PLL) and voltage-controlled oscillator (VCO), or an external clock can directly

drive the clock signal at the operating frequency.

Chip Select Logic

The MC68328 provides sixteen programmable general purpose chip-select signals. For a given chip-select

block, the user may choose whether the chip-select allows read-only, or both read and write accesses, whether

the chip-select should match only one function code value or all values, whether a DTACK is automatically

generated for this chip-select, and after how many wait states (from zero to six) the DTACK will be generated.

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com