MCZ33784EF/R2- FREESCALE [Freescale Semiconductor, Inc], MCZ33784EF/R2- Datasheet - Page 21

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

I / O CONTROL COMMAND AND RESPONSE
the I/O pins, and force their states if configured as outputs.
Refer to
valid I/O Control command to the addressed device. Because
this is a long-word only command, there is no short word
response.
(input or output) of each pin independently. If the DR bit for a
specific I/O pin is set to 1, then that I/O pin will be an output
and the state of the level (Lx) bit will determine whether the
pin is driven high or low. If the DR bit for a specific I/O pin is
set to 0, then that pin will be an input and the Lx bit in the
command will have no affect on the state of the pin.
Analog Integrated Circuit Device Data
Freescale Semiconductor
This command can be used to configure the direction of
The response is sent during the next message following a
The direction (DR) bits are used to specify the direction
Figure 14
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.
–
A2
–
for the command and response format.
A1
–
A0
–
Data
–
0
Figure 13. Request AN1 Command and Response Format
–
0
B9
–
–
0
Response
B8
–
–
0
A3
A3
A3
B9
B9
B7
Address
A2
A2
A2
B8
B8
B6
A1
A1
A1
B7
B7
B5
B [9:0] = Measured value.
will show the direction that the pins were programmed. The
Lx bits will have the values that were set in the command.
These values may not reflect the actual states of the pins. To
obtain the accurate states of the pins, the Request Status
Command should be used.
address bits in the command match with the address that the
device was initialized. If the addresses do not match, the
device will do nothing and no response will be generated.
signal path will configure their I/O pins according to the state
of the data bits. No response results from the I/O control
global command.
In the response to the I/O Control Command, the DR bits
The 33784 will only act on the I/O Control Command if the
Address ‘0000’ is a global command. All slaves in the
A0
A0
A0
B6
B6
B4
B5
B5
B3
0
0
0
Command
B4
B4
B2
1
1
1
B3
B1
B3
0
0
0
LOGIC COMMANDS AND REGISTERS
B2
B2
B0
1
1
1
FUNCTIONAL DEVICE OPERATION
SW & ESW (8-bit)
SW & ESW (8-bit)
ESW (10-bit)
ESW (10-bit)
Word Type
Word Type
LW & ELW
LW & ELW
33784
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