MCZ33784EF Freescale Semiconductor, MCZ33784EF Datasheet - Page 22

• Manufacturer Part Number: MCZ33784EF
• Description: IC SENSOR DBUS DSI 2.02 16-SOIC
• Manufacturer: Freescale Semiconductor
• Type: Sensor Interfacer

Specifications of MCZ33784EF

• Input Type: Analog
• Output Type: Digital
• Interface: Bus
• Current - Supply: 4mA
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Sensing Axis: X, Y
• Acceleration: 250 g
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

REQUEST ID COMMAND AND RESPONSE
read from internal storage and returned to the master. The
command format is found in
valid Request ID command to the addressed device.
22
33784
FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
This command will cause the device ID information to be
The response is sent during the next message following a
A3
A3
Legend
A [3:0] = Address bits.
DR [2:0] = I / O direction bits. 1 = Output. All bits are set to 0
by reset / clear.
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
L2
A2
–
A1
A1
L1
–
A0
A0
L0
–
Figure
Data
Data
–
0
–
0
Figure 15. Request ID Command and Response Format
Figure 14. I/O Control Command and Response Format
15.
DR2
0
–
0
DR1
–
0
0
Response
Response
DR0
–
0
0
A3
V3
A3
0
Address
Address
A2
V2
A2
L2
No Response
No Response
Not Valid
Not Valid
A1
V1
A1
L1
“–” = Don’t care bit. Can be 0 or 1.
L[2:0] = Level to output on I/O if configured as outputs.
V [3:0] = Device version number. The silicon version
number of the device. V0 always = 0, indicating MC33784
FPAR = Some parameters in the device are trimmed by
fuses. Since these parameters can be impacted by the
state of the fuses a fuse parity is calculated and stored
during device manufacturing. When the device is powered
up the current fuse parity is checked against the stored
parity. If they do not match this bit is set.
Because this is a long-word only command, there is no short
word response.
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.
No Response
No Response
The 33784 will only act on this command if the address bits
Not Valid
Not Valid
A0
V0
A0
L0
0
0
0
0
Command
Command
DR2
0
1
0
DR1
1
0
0
Analog Integrated Circuit Device Data
FPA
DR0
R
1
0
SW & ESW (8-bit)
SW & ESW (8-bit)
SW & ESW (8-bit)
SW & ESW (8-bit)
ESW (10-bit)
ESW (10-bit)
ESW (10-bit)
ESW (10-bit)
Freescale Semiconductor
Word Type
Word Type
Word Type
Word Type
LW & ELW
LW & ELW
LW & ELW
LW & ELW