STEVAL-TCS003V1 STMicroelectronics, STEVAL-TCS003V1 Datasheet - Page 34

• 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

GPIO controller
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The function of each bit is shown in the following table:
Table 33. Bit function
GPIO Edge Detect Status
GPIO Monitor Pin State
GPIO Set Pin Direction
GPIO Clear Pin State
GPIO Set Pin State
GPIO Falling Edge
GPIO Rising Edge
GPIO Pull Down
Register Name
GPIO Pull Up
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’ has no effect.
Writing ‘1’ to this bit causes the corresponding GPIO to go to ‘0’
state. Writing ‘0’ has no effect.
‘0’ sets the corresponding GPIO to input state, and ‘1’ sets it to
output state
Set to ‘1’ by hardware when there is a rising/falling edge on the
corresponding GPIO. Writing ‘1’ clears the bit. Writing ‘0’ has no
effect.
Set to ‘1’ to enable rising edge detection on the corresponding
GPIO.
Set to ‘1’ to enable falling edge detection on the corresponding
GPIO.
Set to ‘1’ to enable internal pull-up resistor
Set to ‘1’ to enable internal pull-down resistor
Function
STMPE2403