AD7142
1
SERIAL
READBACK
GPIO INPUT LOW WHEN REGISTER IS READBACK
GPIO
INPUT
1
SERIAL
READBACK
GPIO INPUT LOW WHEN REGISTER IS READBACK
GPIO
INPUT
INT
OUTPUT
INT
OUTPUT
GPIO INPUT HIGH WHEN REGISTER IS READBACK
GPIO
INPUT
GPIO INPUT HIGH WHEN REGISTER IS READBACK
GPIO
INPUT
INT
OUTPUT
INT
OUTPUT
NOTES
1. READ GPIO_STATUS REGISTER TO RESET INT OUTPUT.
05702-030
NOTES
1. READ GPIO_STATUS REGISTER TO RESET INT OUTPUT.
Figure 41. INT Output Controlled by the GPIO Input Example,
GPIO_SETUP = 01, GPIO_INPUT_CONFIG = 11
Figure 40. INT Output Controlled by the GPIO Input Example,
GPIO_SETUP = 01, GPIO_INPUT_CONFIG = 10
Table 14. GPIO Interrupt Behavior
GPIO_INPUT_CONFIG
00 = Negative Level Triggered
00 = Negative Level Triggered
01 = Positive Edge Triggered
01 = Positive Edge Triggered
10 = Negative Edge Triggered
10 = Negative Edge Triggered
11 = Positive Level Triggered
11 = Positive Level Triggered
GPIO Pin
1
0
1
0
1
0
1
0
GPIO_STATUS
0
1
1
0
0
1
1
0
INT
1
0
0
1
1
0
0
1
INT Behavior
Not triggered
Asserted while signal on GPIO pin is low
Pulses low at low-to-high GPIO transition
Not triggered
Pulses low at high-to-low GPIO transition
Not triggered
Asserted while signal on GPIO pin is high
Not triggered
Rev. 0 | Page 28 of 68
05702-031