82598EB Datasheet, PDF (46/596 Pages) Intel Corporation – Intel® 82598EB 10 Gigabit Ethernet Controller Datasheet

Intel^® 82598EB 10 GbE Controller - Internal/External Pull-Up/Pull-Down Specifications
Pin Name
AK2
AK3
AK4
Signal Name
VSS
REFCLKIN_P
VSS
Pin Name
AK15
AK17
AK18
Signal Name
(blank)
(blank)
TX0_L3_N
Pin Name
AK29
AK30
AA4
Signal Name
VSS
VSS
VSS
2.13
Internal/External Pull-Up/Pull-Down
Specifications
Table 2-16 and Table 2-17 list internal/external pull-up/pull-down resistor values and whether or not
they are activated in the different device states.
For more details about the internal/external pull-up/pull-down requirements, refer to the Intel^®
82598EB 10 GbE Controller board layout/schematic checklists (not included in this datasheet) as well
as the reference schematics and design guidelines described later in this datasheet.
Table 2-16. Internal and External Pull-Up and Pull-Down Values
Min
Nominal
Max
Units
Pull-up (internal)
2.7
5
8.6
K
Pull-up (external, recommended)
3.3
10
K
Pull-down (external, recommended)
100
470

The 82598 states are defined as follows:
Power-up = while 3.3 V dc is stable, but not 1.2 V dc
Active = normal mode (not power up nor disable)
Table 2-17. Internal/External Pull-Ups/Pull-Downs
Pin Name
EE_DI
EE_DO
EE_SK
EE_CS_N
Internal
Pull-Up
Y
Y
Y
Y
Power Up
Comment
External pull-up
Internal
Pull-Up
N
Y
N
N
Active
Comment
External pull-up
46