ADIS16201/EVAL Analog Devices Inc, ADIS16201/EVAL Datasheet - Page 28

• Manufacturer Part Number: ADIS16201/EVAL
• Description: BOARD EVAL ADIS16201 W/SOFTWARE
• Manufacturer: Analog Devices Inc

Specifications of ADIS16201/EVAL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADIS16201
GENERAL PURPOSE I/O CONTROL
As previously noted, the ADIS16201 provides two general-
purpose, bidirectional I/O pins (GPIOs) that are available to the
user for control of auxiliary circuits within the target application.
All I/O pins are 5 V tolerant, meaning that the GPIOs support
an input voltage of 5 V. All GPIO pins have an internal pull-up
resistor of approximately 100 kΩ, and their drive capability is
1.6 mA. The direction, as well as the logic level, can be
controlled for these GPIO pins through the GPIO_CTRL
control register, as defined in Table 31.
These same GPIO pins are also controllable through the
ALM_CTRL and MSC_CTRL control registers. The priority for
these three control registers in controlling the two GPIO pins is
MSC_CTRL has precedence over ALM_CTRL, which has
precedence over GPIO_CTRL.
GPIO_CTRL Register Definition
Address
0x33, 0x32
1
Auxiliary Digital I/O Control Register. The data within this
register is volatile and is set to 0s upon reset.
Default is valid only until the first register write cycle.
Default
0x0000
1
Format
N/A
Access
R/W
Rev. A | Page 28 of 32
Table 31. GPIO_CTRL Bit Descriptions
Bit
15:10
9
8
7:2
1
0
Description
Not used.
General purpose I/O line 0, data direction control.
General purpose I/O line 1, data direction control.
Not used.
General purpose I/O line 0 polarity.
General purpose I/O line 1 polarity.
0: Input
1: Output
0: Low
1: High
0: Low
1: High
0: Input
1: Output