Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2
ID | Date | Version | Classification |
---|---|---|---|
834576 | 10/10/2024 | 001 | Public |
I2C Enable Status (IC_ENABLE_STATUS) – Offset 9c
The register is used to report the hardware status when the IC_ENABLE register is set from 1 to 0; that is, when the controller is disabled.
If IC_ENABLE has been set to 1, bits 2:1 are forced to 0, and bit 0 is forced to 1.
If IC_ENABLE has been set to 0, bits 2:1 is only be valid as soon as bit 0 is read as ‘0’.
When IC_ENABLE has been written with ‘0,’ a delay occurs for bit 0 to be read as ‘0’ because disabling the controller depends on I2C bus activities.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
31:3 | 0h | RO | Reserved (RSVD_IC_ENABLE_STATUS)
|
2 | 0h | RO | Reserved (SLV_RX_DATA_LOST)
|
1 | 0h | RO | Reserved (SLV_DISABLED_WHILE_BUSY)
|
0 | 0h | RO | IC_EN (IC_EN) When read as 1, the controller is deemed to be in an enabled state. |