Pad Drive Strength - Nvidia Jetson TX2 Manual

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Buffers or level shifters can be used to separate the signals from devices that may be affected. The buffer/shifter
should be disabled until the device pow er is enabled.
Table 87. Module Pins Pulled/Driven High by Tegra Prior to CARRIER_PWR_ON Active
Module Pin Power-on Reset
Default
DSPK_OUT_CLK Internal Pull-up
SPI1_CS0# Internal Pull-up
RESET_IN# Driven High
FORCE_RECOV# Internal Pull-up
SLEEP# Internal Pull-up
GPIO7_TOUCH_RST Driven High
Driven High
CARRIER_STBY#
GPIO5/CAM_FLASH_EN Internal Pull-up
USB0_VBUS_DET Internal Pull-up
SPI2_CS1# Internal Pull-up
SPI2_CS0# Internal Pull-up
UART0_TX Internal Pull-up
UART0_RX Internal Pull-up
WDT_TIME_OUT# Driven High
Table 88. Module Pins Pulled High on the Module Prior to CARRIER_PWR_ON Active
Module Pin Pull-up Supply
Voltage (V)
VIN_PWR_BAD#
RESET_OUT#
I2C_GP0_CLK/DAT
I2C_GP1_CLK/DAT
I2C_GP2_CLK/DAT
I2C_GP3_CLK/DAT
I2C_PM_CLK/DAT
I2C_CAM_CLK/DAT

13.5 Pad Drive Strength

The table below provides the maximum MPIO pad output drive current w hen the pad is configured for the maximum
DRVUP/DRVDN values (11111b). The MPIO pad types include the ST, DD, CZ and LV_CZ type pads. The pad types can be
found in the Jetson TX2/TX2i Module Data Sheet.
Table 89. MPIO Maximum Output Drive Current
IOL/IOH Pad Type
+/- 1mA ST
+/- 1mA DD
+/- 1mA CZ (1.8V mode)
+/- 1mA CZ (3.3V mode)
+/- 1mA LV_CZ
+/- 2mA ST
+/- 2mA DD
+/- 2mA CZ (1.8V mode)
+/- 2mA CZ (3.3V mode)
+/- 2mA LV_CZ
JETSON TX2/TX2i OEM PRODUCT | DESIGN GUIDE | 20180618
Pull-up Strength
(kΩ)
~100
~100
na
~100
~100
na
na
~100
~100
~100
~100
~100
~100
na
External
Pull-up (kΩ)
5.0 10
1.8 100
1.8 1.0
3.3 1.0
1.8 1.0
1.8 1.0
1.8 1.0
1.8 1.0
VOL
0.15*VDD
0.15*VDD
0.15*VDD
0.15*VDD
0.15*VDD
0.15*VDD
0.175*VDD
0.25*VDD
0.15*VDD
0.25*VDD
Module Pin
JTAG_TMS
JTAG_TDI
UART1_RX
SPI0_MISO
SPI0_MOSI
CAN1_TX
CAN1_RX
CAN0_TX
CAN0_RX
GPIO6_TOUCH_INT
GPIO3_CAM1_RST#
CAM_VSYNC
GPIO2_CAM0_RST#
Module Pin
USB0_EN_OC#
USB1_EN_OC#
PEX0_CLKREQ#
PEX0_RST#
PEX1_CLKREQ#
PEX1_RST#
PEX2_CLKREQ#
PEX2_RST#
PEX_WAKE#
VOH
0.825*VDD
0.8*VDD
0.85*VDD
0.85*VDD
0.85*VDD
0.7*VDD
0.7*VDD
0.75*VDD
0.75*VDD
0.75*VDD
NVIDIA Jetson TX2/TX2i OEM Product Design Guide
Power-on Reset Pull-up Strength
Default (kΩ)
Internal Pull-up ~100
Internal Pull-up ~100
Internal Pull-up ~100
Internal Pull-up ~100
Internal Pull-up ~100
Internal Pull-up ~20
Internal Pull-up ~20
Internal Pull-up ~20
Internal Pull-up ~20
Driven High na
Internal Pull-up ~18
Internal Pull-up ~18
Internal Pull-up ~18
Pull-up Supply External
Voltage (V) Pull-up (kΩ)
3.3 100
3.3 100
3.3 56
3.3 56
3.3 56
3.3 56
3.3 56
3.3 56
3.3 56
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