| GPP_D0 / ISH_GP0 / BK0 / SBK0 | OD | Blink BK 0: This function provides the blink (or PWM) capability. The blink/PWM frequency and duty cycle is programmable through the PWM Control register. Refer to Volume 2 for details. |
| GPP_D1 / ISH_GP1 / BK1 / SBK1 | OD | Blink BK 1: This function provides the blink (or PWM) capability. The blink/PWM frequency and duty cycle is programmable through the PWM Control register. Refer to Volume 2 for details. |
| GPP_D2 / ISH_GP2 / BK2 / SBK2 | OD | Blink BK 2: This function provides the blink (or PWM) capability. The blink/PWM frequency and duty cycle is programmable through the PWM Control register. Refer to Volume 2 for details. |
| GPP_D4 / IMGCLKOUT0 / BK4 / SBK4 | OD | Blink BK 4: This function provides the blink (or PWM) capability. The blink/PWM frequency and duty cycle is programmable through the PWM Control register. Refer to Volume 2 for details. |
| GPP_E22 / DDPA_CTRLCLK / DNX_FORCE_RELOAD | I | Download and Execute (DnX):Intel® CSME ROM samples this pin any time ROM begins execution. This includes the following conditions: - G3 Exit.
- Sx, Moff Exit.
- Cold Reset(Host Reset with Power Cycle) Exit.
- Warm Reset(Host Reset without Power Cycle) Exit if Intel® CSME was shutdown in Warm Reset.
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| GPP_D0 / ISH_GP0 / BK0 / SBK0 | OD | Serial Blink SBK 0: This function provides the capability to serialize POST or other messages on the pin to a serial monitor. The Serial Blink message is programmed through the Serial Blink Command/Status and Serial Blink Data registers. Refer to Volume 2 for details. |
| GPP_D1 / ISH_GP1 / BK1 / SBK1 | OD | Serial Blink SBK 1: This function provides the capability to serialize POST or other messages on the pin to a serial monitor. The Serial Blink message is programmed through the Serial Blink Command/Status and Serial Blink Data registers. Refer to Volume 2 for details. |
| GPP_D2 / ISH_GP2 / BK2 / SBK2 | OD | Serial Blink SBK 2: This function provides the capability to serialize POST or other messages on the pin to a serial monitor. The Serial Blink message is programmed through the Serial Blink Command/Status and Serial Blink Data registers. Refer to Volume 2 for details. |
| GPP_D4 / IMGCLKOUT0 / BK4 / SBK4 | OD | Serial Blink SBK 4: This function provides the capability to serialize POST or other messages on the pin to a serial monitor. The Serial Blink message is programmed through the Serial Blink Command/Status and Serial Blink Data registers. Refer to Volume 2 for details. |
| GPP_B15 / TIME_SYNC0 / ISH_GP7 | I | Time Synchronization GPIO 0: Timed GPIO event for time synchronization for interfaces that do not support time synchronization natively. |