12th Generation Intel® Core™ Processors Datasheet Volume 2 of 2
ID | Date | Version | Classification |
---|---|---|---|
767625 | 07/13/2023 | Public |
USB2 Port Link Control 4 (USB2_LINK_MGR_CTRL_REG4) – Offset 80FC
These set of registers is used to control jey USB set of timers. They are spread over 4 registers each 32 bits wide.
Bit Range | Default | Access | Field Name and Description |
---|---|---|---|
31:29 | 0x0 | RW | RESERVED (RSVD2) Reserved |
28:27 | 0x0 | RW | Additional Guardband for L1 Advance Prewake (ADD_GB_4_L1_PREWAKE) 00: +0uF |
26 | 0x0 | RW | select L1 min idle duration that will be driven to Scheduler. Either drive '0' or based on L1 Timeout value (SEL_L1_MIN_IDLE) select L1 min idle duration that will be driven to Scheduler. Either drive '0' or based on L1 Timeout value |
25 | 0x1 | RW | Enable periodic_prewake to prevent L1 entry if in U0, or wake from L1 if already in U2. (EN_PER_PREWAKE) Enable periodic_prewake to prevent L1 entry if in U0, or wake from L1 if already in U2. |
24 | 0x0 | RW | RESERVED (RSVD1) Reserved |
23:22 | 0x0 | RW | RESERVED (RSVD) Reserved |
21:9 | 0x40 | RW | U2 Detect Remote Wake Delay (U2D_RWAKE_DEL) #of microseconds after detecting U2 remote wake condition to reflect K |
8:0 | 0x3 | RW | U2 Entry Ignore Linestate Changes Duration[12:4] (U2_IGN_LS_DUR_12_4) # of microseconds after entering U2, linestate changes are ignored as bus settles |