Sentinel65X-Handbook/Clock Port.md

Table of Contents

• Clock Port

Clock Port

The Sentinel 65X clock port is a small, 28-pin female pin header on the mainboard, which exposes the system's debug serial line, I2C bus, reset and main interrupt lines, PHI2 clock signal, and a 64-address memory-mapped I/O region, mapped to memory beginning at 0x00DFC0. This region of uncommitted expansion is reserved for the use of user-installed clock port accessories.