Datasheet

EHCI Controller Registers (D29:F0)
Intel® Xeon® Processor D-1500 Product Family 405
Datasheet - Volume 1 of 4: Integrated Platform Controller Hub
March 2015
10.1.33 RMHWKCTL—RMH Wake Control Register
Address Offset: 7Eh Attribute: R/W, RO
Default Value: 0000h Size: 16 bits
Function Level Reset: No Power well: Suspend
10.1.34 ACCESS_CNTL—Access Control Register (USB EHCI—
D29:F0)
Address Offset: 80h Attribute: R/W
Default Value: 00h Size: 8 bits
Function Level Reset: No
15:08 OC1Mapping Each bit position maps OC1 (EHCI 1) to a set of ports as follows:
EHCI 1: Map OC1
It is software responsibility to ensure that a given port‘s bit map is set only for one OC pin.
07:00 OC0 Mapping Each bit position maps OC0 (EHCI 1) to a set of ports as follows:
EHCI 1: Map OC0
It is software responsibility to ensure that a given port‘s bit map is set only for one OC pin.
Bit Description
Bit: 15 14 13 12 11 10 9 8
Port: X X XX3210
Bit: 7 6 543210
Port: X X XX3210
Bit Description
15:09 Reserved
08 RMH Inherit EHCI Wake Control Settings -R/W:
0 = bits 2:0 of this register DO NOT reflect the appropriate bits of EHCI PORTSC0 bits 22:20.
1 = Bits 2:0 of this register reflect the appropriate bits of EHCI PORTSC0 bits 22:20.
07:04 Reserved
03 RMH Upstream Wake on Device Resume Disable- R/W
0 = The RMH will initiate a resume on its upstream port and cause a wake when a device
resume occurs on an enabled downstream port
1 = The RMH will NOT initiate a resume on its upstream port and cause a wake when a
device resume occurs on an enabled downstream port
02 RMH Upstream Wake on OC Disable - R/W
0 = The RMH will initiate a resume on its upstream port and cause a wake when over-current
condition occurs downstream port
1 = The RMH will NOT initiate a resume on its upstream port and cause a wake when over-
current condition occurs downstream port
01 RMH Upstream Wake on Disconnect Disable - R/W
0 = The RMH will initiate a resume on its upstream port and cause a wake when a disconnect
event occurs on a downstream port
1 = The RMH will NOT initiate a resume on its upstream port and cause a wake when a
disconnect event occurs on a downstream port
00 RMH Upstream Wake on Connect Disable- R/W
0 = The RMH will initiate a resume on its upstream port and cause a wake when a connect
event occurs on a downstream port
1 = The RMH will NOT initiate a resume on its upstream port and cause a wake when a
connect event occurs on a downstream port
Bit Description
7:1 Reserved