ADRV9009 Data Sheet
Rev. B | Page 20 of 127
Pin No. Type Mnemonic Description
J3
Input/
output
GPIO_18
Digital GPIO, 1.8 V to 2.5 V. The joint test action group (JTAG) function is
TCLK. Because this pin contains an input stage, the voltage on the pin
must be controlled. When unused, this pin can be tied to ground
through a resistor (to safeguard against misconfiguration), or it can be
left floating, programmed as output, and driven low.
J7
Input/
output
GPIO_2
Digital GPIO, 1.8 V to 2.5 V. The user sets the JTAG function to 0.
Because this pin contains an input stage, the voltage on the pin must
be controlled. When unused, this pin can be tied to ground through a
resistor (to safeguard against misconfiguration), or it can be left floating,
programmed as output, and driven low.
J8
Input/
output
GPIO_1
Digital GPIO, 1.8 V to 2.5 V. The user sets the JTAG function to 0. Because
this pin contains an input stage, the voltage on the pin must be
controlled. When unused, this pin can be tied to ground through a
resistor (to safeguard against misconfiguration), or it can be left floating,
programmed as output, and driven low.
K5
Input/
output
GPIO_5
Digital GPIO, 1.8 V to 2.5 V. The JTAG function is TDO. Because this pin
contains an input stage, the voltage on the pin must be controlled.
When unused, this pin can be tied to ground through a resistor (to
safeguard against misconfiguration), or it can be left floating,
programmed as output, and driven low.
K6
Input/
output
GPIO_4 Digital GPIO, 1.8 V to 2.5 V. The JTAG function is TRST
. Because this pin
contains an input stage, the voltage on the pin must be controlled.
When unused, this pin can be tied to ground through a resistor (to
safeguard against misconfiguration), or it can be left floating,
programmed as output, and driven low.
K7
Input/
output
GPIO_3
Digital GPIO, 1.8 V to 2.5 V. The user sets the JTAG function to 1. Because
this pin contains an input stage, the voltage on the pin must be
controlled. When unused, this pin can be tied to ground through a
resistor (to safeguard against misconfiguration), or it can be left floating,
programmed as output, and driven low.
K8
Input/
output
GPIO_0
Digital GPIO, 1.8 V to 2.5 V. The user sets the JTAG function to 1. Because
this pin contains an input stage, the voltage on the pin must be
controlled. When unused, this pin can be tied to ground through a
resistor (to safeguard against misconfiguration), or it can be left floating,
programmed as output, and driven low.
K11
Input/
output
GPIO_14
Digital GPIO, 1.8 V to 2.5 V. Because this pin contains an input stage, the
voltage on the pin must be controlled. When unused, this pin can be
tied to ground through a resistor (to safeguard against misconfiguration),
or it can be left floating, programmed as output, and driven low.
K12
Input/
output
GPIO_9
Digital GPIO, 1.8 V to 2.5 V. Because this pin contains an input stage, the
voltage on the pin must be controlled. When unused, this pin can be
tied to ground through a resistor (to safeguard against misconfiguration),
or it can be left floating, programmed as output, and driven low.
L5
Input/
output
GPIO_6
Digital GPIO, 1.8 V to 2.5 V. The JTAG function is TDI. Because this pin
contains an input stage, the voltage on the pin must be controlled. When
unused, this pin can be tied to ground through a resistor (to safeguard
against misconfiguration), or it can be left floating, programmed as
output, and driven low.
L6
Input/
output
GPIO_7
Digital GPIO, 1.8 V to 2.5 V. The JTAG function is TMS. Because this pin
contains an input stage, the voltage on the pin must be controlled. When
unused, this pin can be tied to ground through a resistor (to safeguard
against misconfiguration), or it can be left floating, programmed as
output, and driven low.
L11
Input/
output
GPIO_15
Digital GPIO, 1.8 V to 2.5 V. Because this pin contains an input stage, the
voltage on the pin must be controlled. When unused, this pin can be
tied to ground through a resistor (to safeguard against misconfiguration),
or it can be left floating, programmed as output, and driven low.