Pcie Idle Detection De-Bounce Control Register (Offset: 0X364C); Energy Detection De-Bounce Timer (Offset: 0X3650) - Broadcom NetXtreme/NetLink BCM5718 Series Programmer's Manual

BCM5718 Programmer's Guide

PCIE Idle Detection De-Bounce Control Register (offset: 0x364C)

This register is reset by POR Reset or CPMU Register Software Reset. This register is shared by all MAC ports.
User must first gain grant from the global MUTEX registers (0x36F0 & 0x36F4) before writing to it.
Name
PCIE Idle Detection De-
bounce Timer

Energy Detection De-Bounce Timer (offset: 0x3650)

This register is reset by POR Reset or CPMU Register Software Reset.
Name
Reserved
Energy Detect Select
Select HW_Energy_Det
Select
SW_HW_Oring_Energy_Det
SW_Force_Energy_Det_Value 6
Broadcom
®
January 29, 2016 • 5718-PG108-R
Default
Bits Access Value
31:0 RW 0xD for
BCM5718
0x19 for
BCM5719
Default
Bits Access Value
31:10 RO 0
9 RW 0x0
8 RW 0x1
7 RW 0x0
RW 0x1
Central Power Management Unit (CPMU) Registers
Description
De-bounce timer setting for PCIE link from active
to non-active.
Unit is in number of CPMU clock cycles.
Range: up to 232 CPMU clock cycles.
Default: 10 CPMU clocks.
Description
–
Legacy Address: 0x6890:[26]
1: use energy_det_apd from GPHY core
0: use output from the energy debounce logic
This bit selects the source of the System
Energy_Det output
This bit is allows the boot code to reset the GPHY
during an unexpected shutdown, so that it enters
100BT instead of remaining in the Gig mode to
avoid unnecessary power consumption.
1: Select Output of De-bounce Logic
0: Select Combination of Software
Force_Energy_Det and Output of De-bounce
Logic to generate System Energy_Det
This bit is allows the boot code to reset the GPHY
during an unexpected shutdown, so that it enters
100BT instead of remaining in the Gig mode to
avoid unnecessary power consumption.
1: Generate System Energy_Det by Oaring the
SW_Force_Energy_Det with the Output of the
De-bounce Logic
0: Generate System Energy_Det based on the
SW_Force_Energy_Det Output
This bit allows the software to control the state of
the System Energy_Det signal if the
Select_HW_Energy_Det control bit (b12) is 0
1: Drive System Energy_Det high
0: Drive System Energy_Det low
Page 394