STMPE321QTR STMicroelectronics, STMPE321QTR Datasheet - Page 21

• Manufacturer Part Number: STMPE321QTR
• Description: IC CTLR TOUCH KEY 3CH 12-QFN
• Manufacturer: STMicroelectronics
• Series: S-Touch™r
• Type: Capacitiver

Specifications of STMPE321QTR

• Number Of Inputs/keys: 3 Key
• Resolution (bits): 8 b
• Data Interface: I²C
• Data Rate/sampling Rate (sps, Bps): 100k
• Voltage - Supply: 1.65 V ~ 1.95 V
• Mounting Type: Surface Mount
• Package / Case: 12-QFN
• Voltage Supply Source: Single Supply
• Resolution: 7 bit to 10 bit
• Interface Type: I2C
• Supply Voltage (max): 1.95 V
• Supply Voltage (min): 1.65 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Sampling Rate (per Second): -
• Lead Free Status / Rohs Status: Details
• Other names: 497-8985-2

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[2:0] 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, 0x0E
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 3
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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