MC33793DR2 Freescale Semiconductor, MC33793DR2 Datasheet - Page 12

• Manufacturer Part Number: MC33793DR2
• Description: IC DSI SLAVE FOR R-SENSE 16-SOIC
• Manufacturer: Freescale Semiconductor
• Type: Distributed Systems Interfacer

Specifications of MC33793DR2

• Input Type: Logic
• Output Type: Logic
• Interface: 2 Line, I²C (CLK, Address/Data)
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Not Compliant
• Other names: MC33793DR2TR

the received data. If errors are found, no action is taken and
no response is made. Errors include:
CLOCK
integrated onto the die. The signaling system and all internal
operations are such that no external precision timing device
is needed in the normal operation of this device.
BUS SWITCH (BUSSW)
subsequent devices on the bus. It can block a voltage of
either polarity up to the highest idle state level between
BUSIN and BUSOUT.
LOGICOUT
drive capability.
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33793
FUNCTIONAL DESCRIPTION
FUNCTIONAL INTERNAL BLOCK DESCRIPTION
• Read the general purpose I/O logic values and respond
• Generating a cycle redundancy check (CRC) for the
Additionally, the control logic performs error checking on
• CRC received doesn’t match CRC of received data.
• Number of received bits is not 12 or 20.
The clock is a low-stability type with the capacitor
The bus switch passes signaling and power to all
LOGICOUT is a logic level output with enhanced high-side
to request for these values.
received data and transmitted data in conformance with
the DSI Bus Standard.
ADDRESSING
pre-programmed addressing as defined in the DSI
Specification. Runtime programmable addressing uses the
daisy chain bus connection. Pre-programmed devices may
either be connected in daisy chain or in parallel on the bus
wires.
address of $0 in their address register and their bus switches
open. In the daisy chain, if the first device receives the
initialization command device on BUSIN, it will accept the
address in the command and close its switch at the end of the
command. The next device in the chain will now be able to
receive the initialization command on its BUSIN and will
accept the next address. This proceeds down the chain until
the last device is addressed. The devices can also be
initialized by the reverse initialization command if the signal is
applied to BUSOUT.
programmed address in its address register. It will ignore all
Initialization commands unless the address in the command
matches its pre-programmed address. In this event the
device stores the other information contained in the
Initialization command.
The 33793 IC supports both runtime programmable and
Programmable address devices all power up with a device
Pre-programmed devices power up with their pre-
Analog Integrated Circuit Device Data
Freescale Semiconductor