EP80579 Datasheet, PDF (1339/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
36.4
36.5
• Supports even- and odd-parity generation and calculation.
• Maximum clock input frequency of 80 MHz.
Serial Synchronous Port (SSP)
The SSP is a full-duplex, synchronous, serial interface. It can connect to a variety of
external analog-to-digital (A/D) converters, audio and telecom CODECs, and many
other devices that use serial protocols for transferring data.
The interface supports National Microwire*, Texas Instruments* Synchronous Serial
Protocol (SSP), and Motorola* Serial Peripheral Interface (SPI) protocol.
Key features of the SSP Port are:
• Operates in master mode (the attached peripheral functions as a slave).
• Supports serial bit rates from 7.2 Kb/s to 1.84 Mb/s.
• Serial data formats may range from 4 to 16 bits in length.
• Two on-chip register blocks function as independent FIFOs for data, one for each
direction.
• The buffers are 16 entries deep x 16 bits wide.
Buffers may be burst-loaded or emptied by the system processor using SRAM-like burst
transfers, from 1 to 8 words per transfer. Each 32-bit word from the system fills one
entry in a FIFO using the lower half 16-bits of a 32-bit word.
Controller Area Network (CAN)
The Controller Area Network (CAN) is a serial bus system used in a broad range of
embedded as well as automation control systems. It usually links two or more
microcontroller-based physical devices.
CAN protocol is based on a broadcast communication mechanism. This broadcast
communication is achieved by using a message-oriented transmission protocol. In this
protocol, station and station addresses are not defined. Only messages are defined.
These messages are identified by using a message identifier. The message identifier
has to be unique within the whole network and it defines not only the content but also
the priority of the message.
A high degree of system and configuration flexibility is achieved as a result of the
content-oriented addressing scheme.This content-oriented addressing scheme allows
for a high degree of system and configuration flexibility.
It is very easy to add stations to a existing CAN network without making any hardware
or software modifications to the existing stations as long as the new stations are purely
receivers. This allows the concept of modular electronics and also permits multiple
reception and the synchronization of distributed processes. Data needed as information
by several stations can be transmitted via the network in such a way that it is
unnecessary for each station to have to know who the producer of the data is. This
allows easy servicing and upgrading of networks as data transmission is not based on
the availability of specific types of stations.
Key features include:
• Support for CAN 2.0B protocol
• Support for 11-bit and 29-bit identifiers
• Bit rates up to 1 Mbps
August 2009
Order Number: 320066-003US
Intel^® EP80579 Integrated Processor Product Line Datasheet
1339