A slave can hold SCLK low (clock stretching) if not ready, but SPMI limits stretching to avoid deadlock.
Each byte is transferred MSB first, with an after every byte. Acknowledge (ACK/NACK) is signaled on the parity bit slot. A slave can hold SCLK low (clock stretching)
echo 'file spmi.c +p' > /sys/kernel/debug/dynamic_debug/control echo 'file spmi
| Mode | Max Frequency | Typical Use | |------------|---------------|----------------------------| | Low-power | 125 kHz | Sleep state, low activity | | High-speed | 15–26 MHz | Active register access | When a student uses a single switch to
The key to unlocking this potential lies in the mastery of assistive technology and augmentative communication. For a student with SPMI, technology is not a luxury; it is a bridge to the world. Eye-gaze devices, switches, and adapted keyboards allow a student who is physically paralyzed to demonstrate intelligence and preferences. When a student uses a single switch to activate a cause-and-effect toy or chooses a music track, they are engaging in the foundational blocks of literacy and agency. In this context, the role of the teacher transforms from a mere instructor into a detective—one who must meticulously observe subtle cues, such as a shift in breathing, a widening of the eyes, or a slight turn of the head, to understand the student’s intent.