MC33780 Datasheet (Freescale Semiconductor)

MC33780, Dual DBUS Master

of each terminal can be found in the Functional Terminal Descriptions section beginning on page 13.

Terminal 1 2 Terminal Name RST CS Terminal Function Reset Input Formal Name IC Reset SPI Chip Select Input Definition A low level on this terminal returns all registers to a known state as indicated i

www.DataSheet4U.com Freescale Semiconductor Technical Data Document order number: MC33780 Rev 3.0, 5/2006 Dual DBUS Master with Differential Drive and Frequency Spreading The 33780 is a master device for two differential DBUS buses.

It contains the logic to interface the buses to a standard serial peripheral interface (SPI) port and the analog circuitry to drive data and power over the bus as well as receive data from the remote slave devices.

The differential mode of the 33780 generates low

MC33780 Features

* Two Independent DBUS I/Os

* Common SPI Interface for All Operations

* Open-Drain Interrupt Output with Pull-up

* Maskable Interrupts for Send and Receive Data Status

* Automatic Message Cyclical Redundancy Checking (CRC) Generation and Checking

* Fou