Adaptec 1737100 Programmer Manual - Page 96

Internal Registers Subgroup: Ethernet Functional Registers

Page 96 highlights

AIC-6915 Ethernet LAN Controller Programmer's Manual PME Event Register Type: R/W Internal Registers Subgroup: Ethernet Functional Registers Byte Address: 58h- 5Bh Table 7-33. PME Event Register Reset Bit(s) rw Value Description/Function 31:6 r 0 Reserved: Always read 0. 5 r/w 0 ExtPhyReset: This bit controls the PHYRESET pin directly. Setting EXTPHYRESET is the only way to assert the external pin. 4 r 0 LinkFailStatus: Indicates there is a link fail. This bit is connected directly to the LINKFAIL pin in GPIO bit 0. 3 r/w 0 LinkFailEn: Setting this bit indicates that GPIO bit 0 input mode is used for a Link Fail event. Clearing the bit disables Link Fail from generating PME_. 2 r/w 0 LinkFailLowActive: Clearing this bit indicates that GPIO bit 0 is active high at input mode as a Link Fail indicator. Setting the bit indicates the GPIO bit 0 is active low. 1 r 0 LinkFailEvt: Indicates a link fail event. PME_ is asserted. This bit is cleared when the PME_STATUS bit is cleared. 0 r 0 WakeupEvt: Indicates a wake-up event from the receive module. PME_ is asserted. This bit is cleared when PME_STATUS bit is cleared. Serial EEPROMControlStatus Register Type: R/W Internal Registers Subgroup: PCI Functional Registers Byte Address: 60h - 63h Table 7-34. EEPROMControlStatus Register Reset Bit(s) rw Value Description/Function 31:4 r 3 r 0 Reserved: Always read as 0. 0 InitDone: If the board is set up to read the EEPROM after a hardreset, this bit indicates when the initial reading of the EEPROM is finished. If the board is set up not to read EEPROM after a hardreset, this bit is cleared. 2 r 0 Idle: This is the idle STATUS bit indicating the serial EEPROM state machine is busy or idle. 1 r/w 0 WriteEnable: When this bit is set, it triggers the serial EEPROM interface to issue a 'Write Enable' command. When the command is completed the bit is cleared. 0 r/w 0 WriteDisable: When this bit is set, it triggers the serial EEPROM interface to issue a 'Write Disable' command. When the command is completed the bit is cleared. 7-24

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7-24
AIC-6915 Ethernet LAN Controller Programmer’s Manual
PME Event Register
Type: R/W
Internal Registers Subgroup: Ethernet Functional Registers
Byte Address:
58h- 5Bh
Serial EEPROMControlStatus Register
Type: R/W
Internal Registers Subgroup: PCI Functional Registers
Byte Address: 60h - 63h
Table 7-33. PME Event Register
Bit(s)
rw
Reset
Value
Description/Function
31:6
r
0
Reserved:
Always read 0.
5
r/w
0
ExtPhyReset:
This bit controls the
P
HY
R
ESET
pin directly. Setting
E
XT
P
HY
R
ESET
is the only way to assert the external pin.
4
r
0
LinkFailStatus:
Indicates there is a link fail. This bit is connected
directly to the
L
INK
F
AIL
pin in GPIO bit 0.
3
r/w
0
LinkFailEn:
Setting this bit indicates that GPIO bit 0 input mode is
used for a Link Fail event. Clearing the bit disables Link Fail from
generating
PME_
.
2
r/w
0
LinkFailLowActive:
Clearing this bit indicates that GPIO bit 0 is
active high at input mode as a Link Fail indicator. Setting the bit
indicates the GPIO bit 0 is active low.
1
r
0
LinkFailEvt:
Indicates a link fail event. PME_ is asserted. This bit is
cleared when the
PME_S
TATUS
bit is cleared.
0
r
0
WakeupEvt:
Indicates a wake-up event from the receive module.
PME_
is asserted. This bit is cleared when
PME_S
TATUS
bit is
cleared.
Table 7-34. EEPROMControlStatus Register
Bit(s)
rw
Reset
Value
Description/Function
31:4
r
0
Reserved:
Always read as 0.
3
r
0
InitDone
: If the board is set up to read the EEPROM after a hard-
reset, this bit indicates when the initial reading of the EEPROM is
finished. If the board is set up not to read EEPROM after a hard-
reset, this bit is cleared.
2
r
0
Idle
: This is the idle
STATUS
bit indicating the serial EEPROM state
machine is busy or idle.
1
r/w
0
WriteEnable:
When this bit is set, it triggers the serial EEPROM
interface to issue a ‘Write Enable’ command. When the command is
completed the bit is cleared.
0
r/w
0
WriteDisable
: When this bit is set, it triggers the serial EEPROM
interface to issue a ‘Write Disable’ command. When the command is
completed the bit is cleared.