COM-07 — I2C onboard pull-ups + VDDA_SEL coordination
draft · Communication
Statement
The I2C SDA and SCL lines shall be weakly pulled up to the active EXT_VIO rail through onboard 10 kΩ resistors, and the VDDA_SEL control shall be coordinated with the EXT_VIO setting to align the analog domain
Acceptance Criteria
Onboard pull-up 10 kΩ on SDA and SCL referenced to EXT_VIO; VDDA_SEL = HIGH when EXT_VIO ≥ 2.5 V, VDDA_SEL = LOW when EXT_VIO ≤ 1.8 V; external 1.1 kΩ pull-ups recommended for high-capacitance / long traces. Per Sparrow Hardware Datasheet v3 §6.12.1 (sourceRef: 01_ProductSpec/Sparrow Hardware Datasheet-v3-20260504_150735.pdf)
Sign-offs
No sign-offs recorded. Approving a requirement records one here.