mma1605wr2 Freescale Semiconductor, Inc, mma1605wr2 Datasheet - Page 43

• Manufacturer Part Number: mma1605wr2
• Description: Dsi Inertial Sensor
• Manufacturer: Freescale Semiconductor, Inc

4.2.1.15
4.2.1.16
‘1111’.
4.3
Sensors
Freescale Semiconductor
Table 59. Exception Handling
Capacitor Test
(Factory Array)
Undervoltage
Undervoltage
Undervoltage
Undervoltage
Out of Range
Temperature
Exception
(User Array)
DSI Command ‘1110’ is not implemented. The device ignores all command formats with a command ID of ‘1110’.
The Reverse Initialization Command is not implemented. The device ignores all command formats with a command ID of
Table 59
DSI Frame
Fuse CRC
Fuse CRC
Power On
Transient
Self Test
Self Test
Timeout
Enabled
Lockout
Failure
V
V
V
Reset
V
Fault
Fault
REGA
HCAP
HCAP
REG
The device
Condition
Exception Handling
summarizes the exception conditions detected by the device and the response for each exception.
DSI Command #14
Reverse Initialization Command
Self Test
Request
Disabled
Disabled
Disabled
Disabled
Disabled
Enabled
Enabled
Enabled
Enabled
Enabled
N/A
N/A
N/A
N/A
N/A
N/A
ignores all command received on the BUSOUT pin.
Power Applied
Clear Command
V
V
V
than t
V
than t
V
than t
V
CRC failure detected in factory
programmed OTP array and the
LOCK_F bit is set. ST Disabled
CRC failure detected in factory
programmed OTP array and the
LOCK_F bit is set. ST Enabled
CRC failure detected in User pro-
grammed OTP array and the
LOCK_U bit is set. ST Disabled
CRC failure detected in User pro-
grammed OTP array and the
LOCK_U bit is set. ST Enabled
Temperature out of range, ST
Disabled.
Temperature out of range, ST
Enabled.
ST Enabled
2 consecutive Disable Self Test
DSI commands received.
REG
REGA
HCAP
HCAP
HCAP
BUSIN
HCAP_POR
HCAP_POR
HCAP_POR
< V
< V
< V
< V
< V
< V
PORCREG_f
Description
PORCREG_f
PORCREG_f
PORCREG_f
PORCREG_f
THF
for longer than t
, ST Disabled
, ST Enabled
for less
for less
for longer
TO
S ST U
1
0
0
1
1
1
1
1
1
1
0
1
0
1
0
1
0
1
0
1
1
0
0
1
1
0
0
0
0
0
0
0
0
– Reference
– Device held in Reset.
– No response to DSI commands.
– Bus switch open within t
– Device must be re-initialized when V
– Device held in Reset.
– No response to DSI commands.
– Bus switch open within t
– Device must be re-initialized when V
– DSI Read Acceleration Data Short response = zero.
– DSI Read Acceleration Data Long response = normal.
– Device does not need to be re-initialized if V
– DSI Read Acceleration Data Short response = self test data.
– DSI Read Acceleration Data Long response = self test data.
– Device does not need to be re-initialized if V
– Device is Reset and will continue to Reset every t
– No response to DSI commands.
– Bus switch open within t
– Device must be re-initialized when V
– Device is Reset and will continue to be reset every t
– No response to DSI commands.
– Bus switch open within t
– Device must be re-initialized when capacitor failure is removed.
– Device is Reset and will continue to be reset every t
– No response to DSI commands.
– Bus switch open within t
– Device must be re-initialized when V
– DSI Read Acceleration Data Short response = zero.
– DSI Read Acceleration Data Long response = normal.
– DSI Read Acceleration Data Short response = zero.
– DSI Read Acceleration Data Long response = self test data.
– DSI Read Acceleration Data Short response = zero.
– DSI Read Acceleration Data Long response = normal.
– DSI Read Acceleration Data Short response = zero.
– DSI Read Acceleration Data Long response = self test data.
– DSI Read Acceleration Data Short response = zero.
– DSI Read Acceleration Data Long response = normal.
– DSI Read Acceleration Data Short response = zero.
– DSI Read Acceleration Data Long response = self test data.
– Internal self test circuitry enabled.
– DSI Read Acceleration Data Short response = self test data.
– DSI Read Acceleration Data Long response = self test data.
– Internal self test circuitry disabled.
– Enable Self Test DSI command does not enable Self Test. Normal
– DSI Clear command or Reset disables lockout.
V
V
returns above V
occurs.
capacitor failure is removed.
voltage returns above V
response to Enable Self Test DSI command except the ST bit is not set.
PORHCAP_r
PORHCAP_r
Section 3.6
before t
before t
PORHCAP_r
HCAP_POR
HCAP_POR
THF
BSOPEN
BSOPEN
BSOPEN
BSOPEN
BSOPEN
, or an internal supply undervoltage condition
or a supply undervoltage condition occurs.
Response
.
.
.
.
.
REG
REGA
HCAP
BUSIN
returns above V
returns above V
returns above V
returns above V
HCAP_POR
POR_CAPTEST
HCAP
HCAP
TO
PORCREG_r
until the BUSIN
PORCREGA_r
PORHCAP_r
THF
returns above
returns above
until VHCAP
MMA16xxWR
until the
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