MC33793DR2 Freescale Semiconductor, MC33793DR2 Datasheet - Page 13

• 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

an address using a two-command sequence. The first step is
satisfied on the reception of an Initialization command with
address set to zero, the PA[3:0] set to the address to be
programmed, and the NV bit set. This will cause the address
contained in the PA[3:0] bits to be stored in the address
register and the bus switch closed. The second step is taken
when a Read/Write NVM command is received with the
PA[3:0] bits matching the A[3:0] bits and also matching the
bits stored in the 33793 address register. This will cause the
33793 to permanently store this address into an internal NVM
area.
Table 6. DSI Bus Commands
Analog Integrated Circuit Device Data
Freescale Semiconductor
Legend
BS = Controls closing of the Bus Switch (1 = close).
DR[3:0] = Direction of I/O. 1 = Output.
G[1:0] = Group assignment (the 33793 does not use these bits).
L[3:0] = Level to output on I/O if configured as outputs.
C3
A device may be permanently programmed one time with
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
Command
C2
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
C1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
C0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Size
LW
SW
SW
LW
SW
SW
SW
SW
SW
LW
SW
SW
LW
Initialization
Request Status
Request Value 0
I/O Control
Request ID Information
Request Value 1
Request Value 2
Clear
Request Value 3
Read/Write NVM
Reserved
Reserved
Clear Logic Out
Set Logic Out
Reserved
Reverse Initialization
FUNCTIONAL DEVICE OPERATION
Description
OPERATIONAL MODES
NV
NV
D7
L3
–
–
–
–
–
–
–
1
–
–
MESSAGES
Systems Interface Specification rev. 1.0 unless otherwise
noted.
DSI BUS COMMANDS
and short-word commands. A command word summary is
shown in
indicates short-word commands and LW indicates long-word
commands. Short-word commands may also be sent in the
long-word format. However, when these commands are sent
in the long-word format, it is recommended that the data byte
be sent as $00 to maintain future compatibility. All commands
marked reserved should not be sent to 33793 slaves.
The messages follow the format defined in the Distributed
This device can recognize and respond to both long-word
LO = Logic Out level.
PA[3:0] = Bus Address to set the device to.
NV = Allows nonvolatile address programming if set to "1".
BS
BS
D6
L2
–
–
–
–
–
–
–
1
–
–
Table
D5
G1
G1
L1
–
–
–
–
–
–
–
1
–
–
6. SW in the “Size” column of the table
D4
G0
G0
L0
–
–
–
–
–
–
–
1
–
–
Data
FUNCTIONAL DEVICE OPERATION
PA3
DR3
PA3
PA3
D3
–
–
–
–
–
–
–
–
–
PA2
DR2
PA2
PA2
D2
–
–
–
–
–
–
–
–
–
OPERATIONAL MODES
DR1
PA1
PA1
PA1
D1
–
–
–
–
–
–
–
–
–
DR0
PA0
PA0
PA0
D0
33793
–
–
–
–
–
–
–
–
–
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