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Sentinel65X-Handbook
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Kyle Cardoza 2024-03-22 20:51:09 -04:00
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Clock Port.md
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# 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. 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.
## Pinout
| Pin | Label | | Label | Pin |
| :-- | :----:| | :----: | --: |
| 1 | GND | | +3.3V | 2 |