MCZ33784EF/R2- FREESCALE [Freescale Semiconductor, Inc], MCZ33784EF/R2- Datasheet - Page 20

• Manufacturer Part Number: MCZ33784EF/R2-
• Description: DSI 2.02 Sensor Interface
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

REQUEST AN1 COMMAND AND RESPONSE
to be measured and converted by the on-chip 10-bit ADC.
The approximate timing for the conversion following this
command is shown in
this command depends on the format in which the command
20
33784
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
This command causes the analog voltage on the AN1 pin
A3
Legend
A [3:0] = Address bits. The address of the selected device.
An address value of 0000 is ignored by all devices.
“–” = Don’t care bit. Can be 0 or 1.
BUSIN
–
ADC
Enable
ADC
Sampling
ADC
Conversion
Completed
A2
–
A1
–
Figure
A0
–
Data
11, page 20. The response to
Threshold
Enabled
Disabled
Sampling
Not Sampling
–
0
Figure 12. Request AN0 Command and Response Format
Frame
Figure 11. Approximate ADC Conversion Timing
–
0
B9
–
–
0
4.6μs
End of
Request ANx
Command
Response
B8
–
–
0
A3
A3
A3
B9
B9
B7
Address
A2
A2
A2
B8
B8
B6
7.4μs
A1
A1
A1
B7
B7
B5
B [9:0] = Measured value.
was sent. The sensor data is sent in the format shown in
Figure
in the command match the address that the device was
initialized with. If the addresses do not match, the device will
do nothing and no response will be generated.
The 33784 will only act on this command if the address bits
A0
A0
A0
B6
B6
B4
13.6μs
1.6μs
12.
B5
B5
B3
0
0
0
Command
B4
B4
B2
0
0
0
4.4μs
B3
B3
B1
1
1
1
Analog Integrated Circuit Device Data
All values are approximate and
B2
B2
B0
are not production tested.
0
0
0
Conversion
Complete
SW & ESW (8-bit)
SW & ESW (8-bit)
0.1μs
ESW (10-bit)
ESW (10-bit)
Freescale Semiconductor
Word Type
Word Type
LW & ELW
LW & ELW