MC33793DR2 Freescale Semiconductor, MC33793DR2 Datasheet - Page 17

• 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

REQUEST VALUE n COMMAND
four I/O lines to be measured and returned on the following
Table 13. Request Value n Command Format
Table 15. Request Values Response Format
I/O CONTROL COMMAND
set, the corresponding I/O is enabled as an output. The “L” bit
Table 16. I/O Control Command Format
I/O CONTROL RESPONSE
outputs and their current values.
Analog Integrated Circuit Device Data
Freescale Semiconductor
Legend
A[3:0] = Address bits. The address of the selected device.
An address value of "0000" is ignored by all devices.
Legend
A[3:0] = Address bits. The address of the selected device.
An address value of "0000" is ignored by all devices.
Legend
A[3:0] = Address bits.
DR[3:0] = I/O direction bits. 1 = Output. All bits are set to “0” by
reset/clear.
A3
L3
This command will cause the analog level at one of the
–
This register controls the I/O ports. When the “DR” bits are
The response indicates which I/O has been configured as
L2
A2
–
Table 14. Analog Input Selection
L1
A1
Command
–
0010
0101
0110
1000
High Byte
L0
A0
–
Data
Data
DR3
0
–
0
DR2
A/D Input
–
I/O0
I/O1
I/O2
I/O3
0
DR1
–
0
DR0
–
D7
A3
A3
D6
L[3:0] = Level to output on I/O if configured as output. All bits are set to “0”
by reset/clear
X[3:0] = Cyclic Redundancy Check (CRC). The CRC as calculated by the
master.
C[3:0] = Command number.
X[3:0] = Cyclic Redundancy Check (CRC). The CRC as calculated by the
master.
D[7:0] = Measured value (MSB = D7).
X[3:0] = Cyclic Redundancy Check (CRC).
A2
Address
A2
Address
D5
command. The command format is found in
analog input measured is defined in
REQUEST VALUES RESPONSE
measured by the ADC. The selection of “n” is a function of the
command. This is shown in
represent the voltage at the end of the command. If an
undervoltage condition exists at any time during the
command or the measurement has not completed properly, a
value of “00000000” will be returned. This is a reserved value
to indicate a problem with the measurement. The minimum
valid level reported will be “00000001”. No response is
generated if the command address field was $0.
settings control the level of the corresponding I/O if it is
enabled as an output. The format of this command is shown
in
values at the pins will not be the ones that were programmed
if the pin has been forced to the opposite state. The response
format is shown in
command address field was $0.
A1
A1
D4
Table
This response is an 8-bit value representing the value
The read will be completed during the idle period and will
The values returned will be the values programmed. The
Low Byte
A0
A0
D3
16.
C3
0
D2
Command
Table
Command
C2
0
D1
17. No response is generated if the
C1
DSI COMMANDS AND RESPONSES
1
FUNCTIONAL DEVICE OPERATION
Table
D0
C0
1
15.
Table
X3
X3
X3
14.
X2
X2
X2
Table
CRC
CRC
CRC
X1
X1
X1
13. The
33793
X0
X0
X0
17