Intel® 800 Series Chipset Family Platform Controller Hub (PCH), Volume 2
ID | Date | Version | Classification |
---|---|---|---|
834576 | 10/10/2024 | 001 | Public |
Active LTR (ACTIVELTR_VALUE) – Offset 210
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
31 | 0h | RO | RESERVED (RESERVED3) If the Requirement (bit 15) is clear, that indicates that the device has no LTR requirement for this type of traffic (i.e. it can wait for service indefinitely). If the 10-bit latency value is zero it indicates that the device cannot tolerate any delay and needs the best possible service/response time. |
30:29 | 0h | NA | RESERVED (RESERVED2) Reserved_Hi |
28:26 | 0h | RO | RESERVED (RESERVED1) Support for codes 010 (1us) or 011 (32us) for Snoop Latency Scale (1us -> 32ms total span) only. Writes to this CSR which dont match those values will be dropped completely, next read will return previous value. |
25:16 | 0h | RO | RESERVED (RESERVED0) Non_Snoop_value (non_snoop_value) |
15 | 0h | RW | snoop_requirment (snoop_requirment) If the Requirement (bit 15) is clear, that indicates that the device has no LTR |
14:13 | 0h | NA | reserved_low (reserved_low) Reserved_Lo |
12:10 | 2h | RW | i2c_sw_ltr_snoop_scale_reg_12_10 (i2c_sw_ltr_snoop_scale_reg_12_10) Support for codes 010 (1us) or 011 (32us) for Snoop Latency Scale(1us -> 32ms total span) only. Writes to this CSR which dont match those values will be dropped completely, next read will return previous value. |
9:0 | 0h | RW | snoop_value (snoop_value) 10-bit latency value |