IDT 89HPES12T3G2, Preliminary User'S Manual

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IDT Configuration Registers
PES12T3G2 User Manual 8 - 55 January 28, 2013
Notes
HPCFGCTL - Hot-Plug Configuration Control (0x408)
6 DHRSTSEI RW 0x0
Sticky
Disable Hot Reset Serial EEPROM Initialization. When this
bit is set, step 6 “serial EEPROM initialization” is skipped in the
hot reset sequence described in section Hot Reset on page 2-5
regardless of the selected switch operating mode.
31:7 Reserved RO 0x0 Reserved field.
Bit
Field
Field
Name
Type Default
Value
Description
0 IPXAPN RW 0x0
Sticky
Invert Polarity of PxAPN. When this bit is set, the polarity of the
PxAPN input is inverted in all ports.
1 IPXPDN RW 0x0
Sticky
Invert Polarity of PxPDN. When this bit is set, the polarity of the
PxPDN input is inverted in all ports.
2 IPXPFN RW 0x0
Sticky
Invert Polarity of PxPFN. When this bit is set, the polarity of the
PxPFN input is inverted in all ports.
3 IPXMRLN RW 0x0
Sticky
Invert Polarity of PxMRLN. When this bit is set, the polarity of the
PxMRLN input is inverted in all ports.
4 IPXAIN RW 0x0
Sticky
Invert Polarity of PxAIN. When this bit is set, the polarity of the
PxAIN output is inverted in all ports.
5 IPXPIN RW 0x0
Sticky
Invert Polarity of PxPIN. When this bit is set, the polarity of the
PxPIN output is inverted in all ports.
6 IPXPEP RW 0x0
Sticky
Invert Polarity of PxPEP. When this bit is set, the polarity of the
PxPEP output is inverted in all ports.
7 IPXILOCKP RW 0x0
Sticky
Invert Polarity of PxILOCKP. When this bit is set, the polarity of
the PxILOCKP output is inverted in all ports.
8 IPXP-
WRGDN
RW 0x0
Sticky
Invert Polarity of PxPWRGDN. When this bit is set, the polarity of
the PxPWRGDN input is inverted in all ports.
10:9 Reserved RO 0x0 Reserved field.
11 MRLP-
WROFF
RW 0x1
Sticky
MRL Automatic Power Off. When this bit is set and the Manual
Retention Latch Present (MRLP) bit is set in the PCI Express Slot
Capability (PCIESCAP) register, then power to the slot is automat-
ically turned off when the MRL sensor indicates that the MRL is
open. This occurs regardless of the state of the Power Controller
Control (PCC) bit in the PCI Express Slot Control (PCIESCTL) reg-
ister.
12 RMRL-
WEMIL
RW 0x0
Sticky
Replace MRL Status with EMIL Status. When this bit is set, the
PxMRLN signal inputs are used as electromechanical lock state
inputs.
Bit
Field
Field
Name
Type Default
Value
Description