MCZ33784EF/R2- FREESCALE [Freescale Semiconductor, Inc], MCZ33784EF/R2- Datasheet - Page 19

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

valid Request Status command to the addressed device.
Because this is a long-word only command, there is no short-
word response.
REQUEST AN0 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
Analog Integrated Circuit Device Data
Freescale Semiconductor
The response is sent during the next message following a
This command causes the analog voltage on the AN0 pin
A3
Legend
A [3:0] = Address bits. The address of the selected device.
An address value of 0000 is ignored by all devices.
BSH = High Side Bus switch position (1 = closed).
BSL = Low Side Bus switch position (1 = closed).
–
A2
–
A1
–
Figure
A0
–
Data
11. The response to this
–
0
Figure 10. Request Status Command and Response Format
–
0
–
0
Response
–
0
A3
0
BSH BSL
A2
Address
No Response
“–” = Don’t care bit. Can be 0 or 1.
IO [2:0] = Values at logic I /Os.
A1
Not Valid
states are latched into an internal register after the Request
Status command is received (approximately TBD μs after the
bus rises above the frame threshold), and are held until the
response is transmitted. Any activity that occurs on the I/O
pins after the states are latched will be ignored.
command depends on the format in which the command was
sent. The sensor data is sent in the format shown in
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 I/O bits reflect the logic states of the I/O pins. These
The 33784 will only act on this command if the address bits
No Response
A0
Not Valid
0
0
0
Command
IO2
0
IO1
0
LOGIC COMMANDS AND REGISTERS
FUNCTIONAL DEVICE OPERATION
IO0
1
SW & ESW (8-bit)
SW & ESW (8-bit)
ESW (10-bit)
ESW (10-bit)
Word Type
Word Type
LW & ELW
LW & ELW
Table
33784
10.
19