STEVAL-ICB002V1 STMicroelectronics, STEVAL-ICB002V1 Datasheet - Page 25

• Manufacturer Part Number: STEVAL-ICB002V1
• Description: BOARD EVAL TOUCH STM32/STMPE821
• Manufacturer: STMicroelectronics

Specifications of STEVAL-ICB002V1

• Sensor Type: Touch, Capacitive
• Sensing Range: 3 Button/Key
• Interface: USB
• Voltage - Supply: 3.3V
• Embedded: Yes, MCU, 32-Bit
• Utilized Ic / Part: STMPE821
• Silicon Manufacturer: STMicroelectronics
• Kit Contents: Board
• Features: PWM/GPIO Output, Multiple Touch Detection, Demonstrates Up To 3 Capacitive Touch Keys
• Svhc: No SVHC (15-Dec-2010)
• For Use With: 497-10173 - BOARD EVAL S-TOUCH STM32
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Sensitivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 497-10167

STMPE821
The function of each bit is shown in the following table:
Table 9.
GPIO monitor pin state
GPIO set pin state
GPIO set pin direction
GPIO function
Register name
GPIO control bits function
Reading this bit yields the current state of the bit. Writing has no
effect.
Writing '1' to this bit causes the corresponding GPIO to go to '1' state
Writing '0' to this bit causes the corresponding GPIO to go to '0' state
'0' sets the corresponding GPIO to input state, and '1' sets it to output
state. All bits are '0' on reset. The GPIO must be set as output if the
PWM on this pin is to be used.
'1' sets the corresponding GPIO to function as GPIO/PWM, and '0'
sets it to touch key mode.
For GPIO 0-3, if the GPIO function is set to GPIO/PWM mode and the
AF bits in the PWM master enable register is enabled, the
corresponding GPIO will function as PWM output.
Doc ID 14478 Rev 5
Function
GPIO controller
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