PCIe uses a dual simplex serial data stream with an embedded clock to overcome many of the performance limitations of
parallel bus architectures.
The motors are driven by a dual full-bridge driver IC102, L298 that is connected to the microcontroller via a
parallel bus. A set of logical gates IC1 ensures free-running of the motors.
The Model 4802 GPIB-to-I2C Interface Board provides an l2C serial bus, an 8-bit
parallel bus and an asynchronous serial interface to control digital devices.
By contrast, multi-drop
parallel bus architectures share total bandwidth among devices.
Connecting multiple lines in parallel, referred to as a
parallel bus, is a solution that allows several bits to be transmitted simultaneously.
Each model has four analog channels; MSO models also offer 16 digital channels and built-in
parallel bus trigger and decode functionality.
This multi-layer routed net was duplicated to form a
parallel bus to investigate SSN.
During this period, SCSI received further speed boosts, but its
parallel bus architecture had become increasingly problematic--demanding ever more precise timing to properly synchronize the arrival of multiple signals.
The spreadsheet was generated to summarize the timing results for various nets of a high-speed
parallel bus. The column entries display net names, driver reference designations (plus pin names), receiver designations (and pin names), minimum and maximum rise times, minimum and maximum flight times, setup and hold margins.
The former takes care of the serial acquisition while the logic analyzer captures
parallel bus data that may pertain to the troubleshooting issue at hand.
Development of the ATA/ATAPI-7 specification, an update of the
parallel bus architecture that provides up to 133MB/sec, is currently being finalized (see www.t13.org).