Sundance-spas ST201 Manual de usuario descargar pdf (Pagina 129)

129

Sundance Technology ST201 PRELIMINARY draft 2

CONFIGPARM

Class....................EEPROM Data Format

Base Address ......0x00, address written to EepromCtrl register

Address Offset.....0x00

Access Mode.......Read Only

Width ...................16 bits

This is loaded into the ST201 and controls various hardware functions related to PCI bus operation.

ConfigParm has a default value of 2ab0h, but is normally overwritten by the value in EEPROM. The default

values specify:

FastBackToBack = 0

Lower1Meg = 0

DisableMemBase = 0

D3ColdPme = 0

D1Support = 1

D2Support = 1

PmeEn = 0

MinGnt = 0101b (2.5 us)

MaxLat = 00101b (2.5 us).

BIT BIT NAME BIT DESCRIPTION

0 FastBackToBack Determines the value for the FastBackToBack bit in the ConfigStatus

1 Lower1Meg Provides the value for MemMapType[0] in the MemBaseAddress regis-

ter.

2 DisableMemBase When set, disables the MemBaseAddr register. This bit causes Mem-

BaseAddr to read back as zeroes, appearing as if it is not implemented

by the adapter.

3 D3ColdPme Provides the value returned in bit 15 of the PowerMgmtCap register.

This bit, when set, indicates that the adapter is capable of signaling

wake from the D3cold state.

4 D1Support Provides the value returned in D1Support and also bit 12 in the Power-

MgmtCap register.

5 D2Support Provides the value returned in D2Support and also bit 13 in the Power-

MgmtCap register.

6 PmeEn When this bit is set, the ST201 is allowed to report wake events on the

PMEN signal.

10..7 MinGnt Determines the value returned in bits [4..1] of the MinGnt register.

15..11 MaxLat Determines the value returned in bits [5..1] of the MaxLat register.

1 2 ... 124 125 126 127 128 129 130 131 132 133 134 ... 144 145

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Sundance-spas ST201 Manual de usuario Pagina 129