
4
56F801 Technical Data
and separate top and bottom output polarity control. The up-counter value is programmable to support a
continuously variable PWM frequency. Both edge- and center-aligned synchronous pulse width control (0%
to 100% modulation) are supported. The device is capable of controlling most motor types: ACIM (AC
Induction Motors), both BDC and BLDC (Brush and Brushless DC motors), SRM and VRM (Switched and
Variable Reluctance Motors), and stepper motors. The PWMs incorporate fault protection and cycle-by-
cycle current limiting with sufficient output drive capability to directly drive standard opto-isolators. A
“smoke-inhibit”, write-once protection feature for key parameters is also included. The PWM is double-
buffered and includes interrupt control to permit integral reload rates to be programmable from 1 to 16. The
PWM modules provide a reference output to synchronize the Analog-to-Digital Converters.
The 56F801 incorporates an 8 input, 12-bit Analog-to-Digital Converter (ADC). A full set of standard
programmable peripherals is provided that include a Serial Communications Interface (SCI), a Serial
Peripheral Interface (SPI), and two Quad Timers. Any of these interfaces can be used as General-Purpose
Input/Outputs (GPIO) if that function is not required. An on-chip relaxation oscillator provides flexibility
in the choice of either on-chip or externally supplied frequency reference for chip timing operations.
Application code is used to select which source is to be used.
1.3 State of the Art Development Environment
Processor Expert
TM
(PE) provides a Rapid Application Design (RAD) tool that combines easy-to-
use component-based software application creation with an expert knowledge system.
The Code Warrior Integrated Development Environment is a sophisticated tool for code navigation,
compiling, and debugging. A complete set of evaluation modules (EVMs) and development system
cards will support concurrent engineering. Together, PE, Code Warrior and EVMs create a
complete, scalable tools solution for easy, fast, and efficient development.
1.4 Product Documentation
The four documents listed in
Table 1
are required for a complete description and proper design with the
56F801. Documentation is available from local Motorola distributors, Motorola semiconductor sales
offices, Motorola Literature Distribution Centers, or online at
www.motorola.com/semiconductors
.
Table 1. 56F801 Chip Documentation
Topic
Description
Order Number
DSP56800
Family Manual
Detailed description of the 56800 family architecture, and
16-bit core processor and the instruction set
DSP56800FM/D
DSP56F801/803/805/807
User’s Manual
Detailed description of memory, peripherals, and interfaces
of the 56F801, 56F803, 56F805, and 56F807
DSP56F801-7UM/D
56F801
Technical Data Sheet
Electrical and timing specifications, pin descriptions, and
package descriptions (this document)
DSP56F801/D
56F801
Product Brief
Summary description and block diagram of the 56F801 core,
memory, peripherals and interfaces
DSP56F801PB/D
DSP56F801
Errata
Details any chip issues that might be present
DSP56F801E/D
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
.