EP80579 Datasheet, PDF (1746/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
Table 48-11. General-Purpose IO Signals (Sheet 3 of 5)
Signal Name
GP19_IRQ37
GP20_IRQ26
GP21_IRQ27
GP23_IRQ28
GP24_IRQ29
GP25_IRQ38
GP27_IRQ39
GP28_IRQ30
GP30_IRQ31
GP31_IRQ32
IO Type
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
LVTTL,3.3V
Direction
Ball
Count
External
Pull-Up/
Down
[Ohms]
BSC/
XOR
Signal Description Normal/Alternate Mode
General Purpose IO 19: This signal can function
as either GPIO[19] or IRQ[37]. Resides in the
Core power well.
No pullup
Notes:
I/O
1
required in BSC
IRQ mode
• Internal pullup is always enabled (50K
nominal).
• Do not drive this signal low until the
CPURST# signal is de-asserted.
No pullup
General Purpose IO 20: This signal can function
I/O
1
required in BSC as either GPIO[20] or IRQ[26]. Resides in the
IRQ mode
Core power well.
General Purpose IO 21: This signal can function
as either GPIO[21] or IRQ[27]. Resides in the
Core power well.
No pullup
Notes:
I/O
1
required in BSC
IRQ mode
• Internal pullup is always enabled (50K
nominal).
• Do not drive this signal low until the
CPURST# signal is de-asserted.
General Purpose IO 23: This signal can function
as either GPIO[23] or IRQ[28]. Resides in the
Core power well.
No pullup
Notes:
I/O
1
required in BSC
IRQ mode
• Internal pullup is always enabled (50K
nominal).
• Do not drive this signal low until the
CPURST# signal is de-asserted.
No pullup
General Purpose IO 24: This signal can function
I/O
1
required in BSC as either GPIO[24] or IRQ[29]. Resides in the
IRQ mode
Suspend power well.
No pullup
General Purpose IO 25: This signal can function
I/O
1
required in BSC as either GPIO[25] or IRQ[38]. Resides in the
IRQ mode
Suspend power well.
No pullup
General Purpose IO 27: This signal can function
I/O
1
required in BSC as either GPIO[27] or IRQ[39]. Resides in the
IRQ mode
Suspend power well.
No pullup
General Purpose IO 28: This signal can function
I/O
1
required in BSC as either GPIO[28] or IRQ[30]. Resides in the
IRQ mode
Suspend power well.
No pullup
General Purpose IO 30: This signal can function
I
1
required in BSC as either GPIO[30] or IRQ[31]. Resides in the
IRQ mode
Core power well.
No pullup
General Purpose IO 31: This signal can function
I
1
required in BSC as either GPIO[31] or IRQ[32]. Resides in the
IRQ mode
Core power well.
Intel^® EP80579 Integrated Processor Product Line Datasheet
1746
August 2009
Order Number: 320066-003US