MC33793D Freescale Semiconductor, MC33793D Datasheet - Page 15

• Manufacturer Part Number: MC33793D
• Description: IC DSI SLAVE FOR R-SENSE 16-SOIC
• Manufacturer: Freescale Semiconductor
• Type: Distributed Systems Interfacer

Specifications of MC33793D

• Input Type: Logic
• Output Type: Logic
• Interface: Parallel
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Current - Supply: -

Table 8. Short-word Response Summary
INITIALIZATION COMMAND
before it may commence communications over the bus. The
command may be used three ways. The first is to initialize a
programmable address device. The second is the first step in
assigning a pre-programmed address. The third is to initialize
a pre-programmed device.
with the NV bit set to zero. The command will be received by
the next daisy chain device with its bus switch open.
Reception of this command will assign the device address
and group number.
same as the first except that the NV bit is set to one.
Analog Integrated Circuit Device Data
Freescale Semiconductor
Legend
B[7:0] = 8-bit A/D value.
BS = Status of the Bus Switch (1 = close).
LO = Logic Out level at the Logic Out pin.
IO[3:0] = Logic level of I/O.
The Initialization command must be sent to the 33793
For the first case this command is sent to address zero
For the second case the Initialization command is sent the
Command
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
Initialization
Request Status
Request Value
I/O Control
Request ID Information
Request Value
Request Value
Clear
Request Value
Read/Write NVM
Reserved
Reserved
Clear Logic Out
Set Logic Out
Reserved
Reverse Initialization
Description
Command
0
1
2
3
DSI COMMANDS AND RESPONSES
NV = Allows nonvolatile address programming if set to “1”.
PA[3:0] = Bus Address to set the device to.
U = Under-voltage Flag.
V[2:0] = Version number.
NV
NV
NV
B7
V2
B7
B7
B7
B6
V1
B6
B6
B6
U
U
U
Reception of the command will assign the device address
and group number. A Read/Write NVM command then may
be sent to complete the setting of a pre-programmed
address.
address in both PA3:PA0 and A3:A0 fields.
will ignore further initialization commands unless it has
received a Clear command or undergone a power-up reset.
the bus switch to close.
A pre-programmed device must be initialized by putting its
Once a device has received an initialization command, it
If BS = 1 and no faults are detected, initialization will cause
The command format is found in
LO
LO
LO
B5
V0
B5
B5
B5
BS
BS
BS
B4
B4
B4
No Response
B4
0
Response
Not Valid
Not Valid
Not Valid
Not Valid
IO3
IO3
IO3
B3
B3
B3
B3
0
DSI COMMANDS AND RESPONSES
FUNCTIONAL DEVICE OPERATION
IO2
IO2
IO2
B2
B2
B2
B2
0
Table
9.
IO1
IO1
IO1
B1
B1
B1
B1
1
IO0
IO0
IO0
B0
B0
B0
B0
1
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