STEVAL-TCS003V1 STMicroelectronics, STEVAL-TCS003V1 Datasheet - Page 30

• Manufacturer Part Number: STEVAL-TCS003V1
• Description: BOARD DEMO EXPANDER STMPE2403
• Manufacturer: STMicroelectronics

Specifications of STEVAL-TCS003V1

• Main Purpose: Interface, GPIO Expander
• Embedded: No
• Utilized Ic / Part: STMPE2403
• Primary Attributes: 8/16/24-Bit 24-Port GPIO Expander over I2C
• Secondary Attributes: 3 8-Bit PWM Output for LEDs, Keyboard Matrix Scan, Special Key Support
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8206

Interrupt system
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Interrupt Status GPIO Register (ISGPIOR)
ISGPIOR register monitors the status of the interruption from a particular GPIO pin interrupt
source to the host. Regardless whether the IEGPIOR bits are enabled or not, the ISGPIOR
bits are still updated. The ISG[23:0] bits are the interrupt status bits correspond to the
GPIO[23:0] pins.
Table 29. ISGPIOR register
Table 30. Register description
Name
ISG[x]
ISGPIOR_msb
ISGPIOR _csb
ISGPIOR _lsb
Bit
Interrupt Status GPIO (where x = 23 to 0)
Read:
Interrupt Status of the GPIO[x].
Write:
A write to a ISG[x] bit with a value of ‘1’ will clear the interrupt and a write with a value of
‘0’ has no effect on the ISG[x] bit.
ISG -15 ISG -14 ISG -13 ISG -12 ISG -11 ISG -10
ISG-23 ISG -22 ISG -21 ISG -20 ISG -19 ISG -18 ISG -17 ISG -16
ISG -7
7
ISG -6
6
ISG -5
5
Description
ISG -4
4
ISG -3
3
ISG -2
2
ISG -9
ISG -1
1
STMPE2403
ISG -8
ISG -0
0