56F8122 View Datasheet(PDF) - Freescale Semiconductor

Part Name

Description

Manufacturer

56F8122

16-bit Digital Signal Controllers

Freescale Semiconductor 

Device Description

1.1.5 Energy Information

• Fabricated in high-density CMOS with 5V-tolerant, TTL-compatible digital inputs

• On-board 3.3V down to 2.6V voltage regulator for powering internal logic and memories

• On-chip regulators for digital and analog circuitry to lower cost and reduce noise

• Wait and Stop modes available

• ADC smart power management

• Each peripheral can be individually disabled to save power

1.2 Device Description

The 56F8322 and 56F8122 are members of the 56800E core-based family of controllers. Each combines,

on a single chip, the processing power of a Digital Signal Processor (DSP) and the functionality of a

microcontroller with a flexible set of peripherals to create an extremely cost-effective solution. Because

of their low cost, configuration flexibility, and compact program code, the 56F8322 and 56F8122 are

well-suited for many applications. These devices include many peripherals that are especially useful for

automotive control (56F8322 only); industrial control and networking; motion control; home appliances;

general purpose inverters; smart sensors; fire and security systems; power management; and medical

monitoring applications.

The 56800E core is based on a Harvard-style architecture consisting of three execution units operating in

parallel, allowing as many as six operations per instruction cycle. The MCU-style programming model and

optimized instruction set allow straightforward generation of efficient, compact DSP and control code.

The instruction set is also highly efficient for C Compilers to enable rapid development of optimized

control applications.

The 56F8322 and 56F8122 support program execution from internal memories. Two data operands can be

accessed from the on-chip data RAM per instruction cycle. These devices also provide one external

dedicated interrupt line and up to 21 General Purpose Input/Output (GPIO) lines, depending on peripheral

configuration.

1.2.1 56F8322 Features

The 56F8322 controller includes 32KB of Program Flash and 8KB of Data Flash, each programmable

through the JTAG port, and 4KB of Program RAM and 8KB of Data RAM. A total of 8KB of Boot Flash

is incorporated for easy customer inclusion of field-programmable software routines that can be used to

program the main Program and Data Flash memory areas. Both Program and Data Flash memories can be

independently bulk erased or erased in pages. Program Flash page erase size is 1KB. Boot and Data Flash

page erase size is 512 bytes. The Boot Flash memory can also be either bulk or page erased.

A key application-specific feature of the 56F8322 is the inclusion of one Pulse Width Modulator (PWM)

module. This module incorporates three complementary, individually programmable PWM signal output

pairs and is also capable of supporting six independent PWM functions to enhance motor control

functionality. Complementary operation permits programmable dead time insertion, distortion correction

via current sensing by software, and separate top and bottom output polarity control. The up-counter value

56F8322 Technical Data, Rev. 16

Freescale Semiconductor

9

Preliminary

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