Technical Reference Manual
002-29852 Rev. *B
Bits Name
SW
HW
Default or
Enum
Description
SARMUX2
2
ADC0 uses SARMUX2 (only valid for ADC0, undefined
result if used for ADC1-3)
SARMUX3
3
ADC0 uses SARMUX3 (only valid for ADC0, undefined
result if used for ADC1-3)
8:10
EXT_MUX_SEL
RW
R
Undefined
External analog mux select.
This bit setting is related to EXT_MUX[x]_y on pin
assignment.
0x0: Select EXT_MUX[x]_0 pin
0x1: Select EXT_MUX[x]_1 pin
11
EXT_MUX_EN
RW
R
Undefined
External analog mux enable.
This enable can be used as enable (chip select) for the
external analog mux (this enable is not used as enable
for the GPIO output driver).
This enable also prevents unnecessary toggle activity
on the select signals of the external analog mux. When
this enable is low EXT_MUX_SEL value will be
ignored and the previous value will be maintained.
Note that an external analog mux can only be used in
combination with a pin input, i.e. PIN_ADDR<32 or
Vmotor. If an internal signal is selected this enable
should be 0.
12:13 PRECOND_MODE
RW
R
Undefined
Select preconditioning mode.
Preconditioning (dis)charges the SAR sample
capacitor to the selected reference voltage for
PRECOND_TIME (global) cycles, a break before make
cycle will be inserted before sampling starts
(SAMPLE_TIME).
OFF
0
No preconditioning
VREFL
1
Discharge to VREFL
VREFH
2
Charge to VREFH
DIAG
3
Connect the Diagnostic reference output during
preconditioning. The Diagnostic reference should be
configured to output a reference voltage.
Note: this selection is mutual exclusive with using the
Diagnostic reference to supply an ibias current for
OVERLAP.
14:15 OVERLAP_DIAG
RW
R
Undefined
Select Overlap mode or SARMUX Diagnostics, in both
cases the Diagnostic reference is used.
With Overlap the Diagnostic reference typically
sources or sinks a small current which is connected at
the same time as the analog signal being sampled.
For SARMUX Diagnostics the Diagnostic reference
should provide a reference voltage which is selected at
the SARMUX input instead of the normal analog signal
being sampled.
OFF
0
No overlap or SARMUX Diagnostics
HALF
1
Sample the selected analog input for 2 SAMPLE_TIME
periods. During the first period use overlap sampling,
i.e. connect both the analog input and Diagnostic
reference. During second period only connect the
analog input.
FULL
2
Like normal sample the selected analog input for a
single SAMPLE_TIME period but use overlap
sampling, i.e. connect both the analog input and
Diagnostic reference.
MUX_DIAG
3
Select Diagnostic reference instead of analog signal at
the input of the SARMUX. This enables a functional
safety check of the SARMUX analog connections.
1110
2022-04-18
TRAVEO™ T2G Automotive MCU: TVII-B-E-4M body controller entry registers