FW82801E Intel, FW82801E Datasheet - Page 54

• Manufacturer Part Number: FW82801E
• Description: Communications I/O Controller Hub
• Manufacturer: Intel

Intel
54
Table 32. Power Plane and States for Output and I/O Signals (Sheet 2 of 3)
®
82801E C-ICH
NOTES:
1. The 82801E C-ICH sets these signals at reset for processor frequency strap.
2. I GPIO[18] will toggle at a frequency of approximately 1 Hz when the 82801E C-ICH comes out of reset
3. CPUPWRGD is an open-drain output that represents a logical AND of the VRMPWRGD and PWROK
4. GPIO[24:25, 27:28]: These signals remain tri-stated for up to 110 ms after RSMRST# deassertion. At this
signals and, thus, are driven low by 82801E C-ICH when either VRMPWRGD or PWROK are inactive.
During boot, or during a hard reset with power cycling, CPUPWRGD will be expected to transition from low
to High-Z.
point, they will be driven to their default (High) state.
PDDACK#, SDDACK#
PDD[15:0], SDD[15:0]
USBP0P, USBP0N,
PDA[2:0], SDA[2:0]
USBP1P, USBP1N
PDCS1#, PDCS3#
PDIOR#, PDIOW#
SDCS1#, SDCS3#
SDIOR#, SDIOW#
LAN0_RSTSYNC,
LAN1_RSTSYNC
LAN0_TXD[2:0],
LAN1_TXD[2:0]
Signal Name
EE0_SHCLK,
EE1_SHCLK
CPUPWRGD
EE0_DOUT,
EE1_DOUT
PIRQ[A:H]#
APICD[1:0]
CPUSLP#
SERIRQ
IGNNE#
A20M#
INIT#
INTR
SMI#
NMI
Power Plane
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
Main I/O
CPU I/O
Main I/O
CPU I/O
CPU I/O
CPU I/O
CPU I/O
CPU I/O
CPU I/O
LAN I/O
LAN I/O
LAN I/O
LAN I/O
Processor Interface
USB Interface
IDE Interface
Interrupts
RSM_PWROK
RSM_PWROK
RSM_PWROK
RSM_PWROK
Reset Signal
RSMRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
PCIRST#
Advance Information Datasheet
During Reset
See Note 1
See Note 3
See Note 1
See Note 1
See Note 1
High-Z
High-Z
High-Z
High-Z
High-Z
High
High
High
High
High
High
High
High
High
High
Low
Low
Low
Immediately
after Reset
Undefined
Running
Running
Defined
Defined
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
High
High
High
High
High
High
High
High
High
High
Low
Low