Which 20737 pins can be configured as interrupts?

[Anonymous]

Hello,

   I looked through the BCM20737 datasheet and the BCM02737 Schematic Design Guidelines, but I didn't see this information. Where should I look?

[MichaelF_56 · Accepted solution]

There are up to 14 GPIOs on the module (40 on SOC)

• Most can drive/sink up to 2mA
• Capable of waking device from sleep or deep sleep
• App can configure interrupts (both/either edges, level), pull-up/pull-down High-Z, etc.
• Check theWICED™ Smart Hardware Interfaces to determine availability

[Anonymous]

Thank you. I didn't know that any pin could be used as an interrupt; that is nice.

BTW, the 2mA drive current is kind of a pain; it forces one to use current buffers for simple LEDs. Most MCUs designed for ultra low power have a drive current of 4mA - 8mA.

[MichaelF_56]

dsmith

There's also 4 PWM channels on module (and SoC) and these can sink up to 16mA which make them ideal for controlling things like LEDs and Buzzers.