89hpes12nt3 Integrated Device Technology, 89hpes12nt3 Datasheet - Page 8

• Manufacturer Part Number: 89hpes12nt3
• Description: 12-lane, 3-port Pcie Inter-domain Switch
• Manufacturer: Integrated Device Technology

Pin Characteristics
IDT 89HPES12NT3 Data Sheet
Note: Some input pads of the PES12NT3 do not contain internal pull-ups or pull-downs. Unused inputs should be tied off to appropriate
levels. This is especially critical for unused control signal inputs which, if left floating, could adversely affect operation. Also, any input pin left
floating can cause a slight increase in power consumption.
PCI Express Inter-
face
SMBus
General Purpose I/O
Function
PEALREV
PEARN[3:0]
PEARP[3:0]
PEATN[3:0]
PEATP[3:0]
PEBLREV
PEBRN[3:0]
PEBRP[3:0]
PEBTN[3:0]
PEBTP[3:0]
PECLREV
PECRN[3:0]
PECRP[3:0]
PECTN[3:0]
PECTP[3:0]
PEREFCLKN[1:0]
PEREFCLKP[1:0]
REFCLKM
MSMBADDR[4:1]
MSMBCLK
MSMBDAT
SSMBADDR[5,3:1]
SSMBCLK
SSMBDAT
GPIO[7:0]
Pin Name
Table 7 Pin Characteristics (Part 1 of 2)
Type
I/O
I/O
I/O
I/O
I/O
O
O
O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
I
8 of 29
Buffer
LVPECL/
LVTTL
LVTTL
LVTTL
LVTTL
LVTTL
LVTTL
CML
CML
CML
CML
High Drive
Diff. Clock
Serial link
Serial link
Serial link
Type
Input,
Input
Input
Input
Input
Input
Input
Input
I/O
STI
STI
Resistor
Internal
pull-down
pull-down
pull-down
pull-down
pull-up
pull-up
pull-up
Notes
Refer to
Table 8
April 11, 2007