Infineon TRAVEO T2G - 15.25.2 GPIO_VDD_ACTIVE

Technical Reference Manual 002-29852 Rev. *B
15.25.2 GPIO_VDD_ACTIVE
Description:
Extern power supply detection register
Address:
0x40314010
Offset:
0x4010
Retention:
Retained
IsDeepSleep:
No
Comment:
This register provides external power supply status
Default:
0x0
Bit-field Table
Bits 7 6 5 4 3 2 1 0
Name VDDIO_ACTIVE [7:0]
Bits 15 14 13 12 11 10 9 8
Name VDDIO_ACTIVE [15:8]
Bits 23 22 21 20 19 18 17 16
Name None [23:16]
Bits 31 30 29 28 27 26 25 24
Name VDDD
_ACTIVE
[31:31]
VDDA
_ACTIVE
[30:30]
None [29:24]
Bit-fields
Bits Name SW HW Default or
Enum
Description
0:15 VDDIO_ACTIVE R W 0 Indicates presence or absence of VDDIO supplies (i.e.
other than VDDD, VDDA) on the device (supplies are
numbered 0..n-1). Note that VDDIO supplies have
basic (crude) supply detectors only. If separate, robust,
brown-out detection is desired on IO supplies, on-chip
or off-chip analog resources need to provide it. For
these bits to work reliable, the supply must be within
valid spec range (per datasheet) or held at ground.
Any in-between voltage has an undefined result.
'0': Supply is not present
'1': Supply is present
When multiple VDDIO supplies are present, they will
be assigned in alphanumeric ascending order to these
bits during implementation.
For example 'vddusb, vddio_0, vddio_a, vbackup,
vddio_r, vddio_1' are present then they will be
assigned to these bits as below:
0: vbackup,
1: vddio_0,
2: vddio_1,
3: vddio_a,
4: vddio_r,
5: vddusb'
30 VDDA_ACTIVE R W 0 Same as VDDIO_ACTIVE for the analog supply
VDDA.
31 VDDD_ACTIVE R W 0 This bit indicates presence of the VDDD supply. This
bit will always read-back 1. The VDDD supply has
robust brown-out protection monitoring and it is not
possible to read back this register without a valid
supply. (This bit is used in certain test-modes to
observe the brown-out detector status.)
991
2022-04-18
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