AD7142 Analog Devices, AD7142 Datasheet - Page 43

• Manufacturer Part Number: AD7142
• Description: Programmable Controller for Capacitance Touch Sensors
• Manufacturer: Analog Devices

Specifications of AD7142

• Resolution (bits): 16bit
• # Chan: 14
• Sample Rate: 250kSPS
• Interface: I²C/Ser 2-Wire,Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: ± 2 pF (Delta C)
• Adc Architecture: Sigma-Delta
• Pkg Type: CSP

Table 24. STAGE_LOW_INT_EN Register
Address
0x005
Data Bit
[0]
[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[13:12]
[15:14]
Default Value
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Type
R/W
Name
STAGE0_LOW_INT_EN
STAGE1_LOW_INT_EN
STAGE2_LOW_INT_EN
STAGE3_LOW_INT_EN
STAGE4_LOW_INT_EN
STAGE5_LOW_INT_EN
STAGE6_LOW_INT_EN
STAGE7_LOW_INT_EN
STAGE8_LOW_INT_EN
STAGE9_LOW_INT_EN
STAGE10_LOW_INT_EN
STAGE11_LOW_INT_EN
GPIO_SETUP
GPIO_INPUT_CONFIG
Rev. A | Page 43 of 72
STAGE0 low interrupt enable
STAGE1 low interrupt enable
STAGE2 low interrupt enable
STAGE3 low interrupt enable
STAGE4 low interrupt enable
STAGE5 low interrupt enable
STAGE6 low interrupt enable
STAGE7 low interrupt enable
STAGE8 low interrupt enable
STAGE9 low interrupt enable
STAGE10 low interrupt enable
STAGE11 low interrupt enable
GPIO setup
GPIO input configuration
Description
1 = INT asserted if STAGE1 low threshold is exceeded
0 = interrupt source disabled
1 = INT asserted if STAGE2 low threshold is exceeded
0 = interrupt source disabled
1 = INT asserted if STAGE3 low threshold is exceeded
0 = interrupt source disabled
1 = INT asserted if STAGE4 low threshold is exceeded
0 = interrupt source disabled
1 = INT asserted if STAGE5 low threshold is exceeded
0 = interrupt source disabled
1 = INT asserted if STAGE6 low threshold is exceeded
0 = interrupt source disabled
1 = INT asserted if STAGE7 low threshold is exceeded
0 = interrupt source disabled
1 = INT asserted if STAGE8 low threshold is exceeded
0 = interrupt source disabled
1 = INT asserted if STAGE9 low threshold is exceeded
0 = interrupt source disabled
1 = INT asserted if STAGE10 low threshold is exceeded
0 = interrupt source disabled
1 = INT asserted if STAGE11 low threshold is exceeded
00 = disable GPIO pin
01 = configure GPIO as an input
10 = configure GPIO as an active low output
11 = configure GPIO as an active high output
00 = triggered on negative level
01 = triggered on positive edge
10 = triggered on negative edge
11 = triggered on positive level
0 = interrupt source disabled
1 = INT asserted if STAGE0 low threshold is exceeded
0 = interrupt source disabled
AD7142