STMPE321 ST Microelectronics, STMPE321 Datasheet - Page 21

• Manufacturer Part Number: STMPE321
• Description: 3-channel capacitive touch key controller
• Manufacturer: ST Microelectronics

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STMPE321
GPIO_INT_EN
Address:
Type:
Reset:
Description:
GPIO_INT_STA
Address:
Type:
Reset:
Description:
7
7
[7:3] RESERVED
[2:0] IEG[2:0]
[7:0] ISG[x]:
6
6
0x0B, 0x0C
R/W
0x00
The GPIO interrupt enable register is used to enable the interruption from a particular
GPIO interrupt source to the host. The IEg[2:0] bits and the interrupt enable mask bits
correspond to the GPIO[7:0} pins.
Interrupt enable GPIO mask (where x = 2 to 0)
Writing a ‘1’ to the IE[x] bit enables the interruption to the host.
0x0D
R/W
0x00
The GPIO interrupt status register LSB monitors the status of the interruption from a
particular GPIO pin interrupt source to the host. Regardless of whether or not the
IEGPIOR bits are enabled, the INT_STA_GPIO_LSB bits are still updated. The
ISG[2:0] bits are the interrupt status bits correspond to the GPIO[2:0] pins.
Interrupt status GPIO (where x = 2 to 0)
Read:
Interrupt status of the GPIO[x]. Writing ‘1’ clears a bit. Writing ‘0’ has no effect.
RESERVED
5
5
4
4
Doc ID 15791 Rev 1
3
3
ISG
2
2
GPIO interrupt enable registerI
GPIO interrupt status register
Interrupt controller module
IEG
1
1
0
0
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