ADIS16203 Analog Devices, Inc., ADIS16203 Datasheet - Page 23

• Manufacturer Part Number: ADIS16203
• Description: Programmable 360 Inclinometer
• Manufacturer: Analog Devices, Inc.

GENERAL-PURPOSE I/O CONTROL
As previously noted, the ADIS16203 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. Each
GPIO pin has an internal pull-up resistor of approximately 100 kΩ
and a drive capability of 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 23.
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 prece-
dence over ALM_CTRL, which has precedence over GPIO_CTRL.
GPIO_CTRL Register Definition
Address
0x33, 0x32
1
The data within the general-purpose digital I/O control 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. 0 | Page 23 of 28
Table 23. 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: Input
1: Output
0: Low
1: High
0: Low
1: High
ADIS16203