Data Sheet

THUNDERCOMM TurboX™ C40x SoM Datasheet
14
3.1 Interfaces Parameter Definitions
Symbol
Description
AI
Analog input
AO
Analog output
B
Bidirectional digital with CMOS input
DI
Digital input(CMOS)
DSI
Supply voltage for MIPI_DSI I/Os; tied to VDD_MIPI (1.2 V only)
DO
Digital output(CMOS)
H
High-voltage tolerant
nppdpukp
Programmable pull resistor. The default pull direction is indicated using capital letters and is a
prefix to other programmable options:
NP: pdpukp = default no-pull with programmable options following the colon (:)
PD: nppukp = default pull-down with programmable options following the colon (:)
PU: nppdkp = default pull-up with programmable options following the colon (:)
KP: nppdpu = default keeper with programmable options following the colon (:)
KP
Contains an internal weak keeper device (keepers cannot drive external buses)
MIPI
Mobile industry processor interface
NP
Contains no internal pull
OD
Open drain
PD
Contains an internal pull-down device
PI
Power input
PO
Power output
PD
Contains an internal pull-down device
PU
Contains an internal pull-up device
P3
Power group 3，it is 1.8V.
P2
SDC Power group 2，it is 1.8V or 2.95V.
P12
SSC Power group 12，it is 1.8V.