Pin and Signal Descriptions

Pin Descriptions

1.2Pin Descriptions

This section details all the pins for the different interfaces providing a functional description of each pin and pin attributes.

Table 1<Default ¬¹ Font> defines the abbreviations and acronyms used in the pin description tables.

Table 1: Pin Functions and Assignments Table Key

Term

Definition

[n]n - Represents the SERDES pair number

<n>

Represents port number when there are more than one ports

 

 

Analog

Analog Driver/Receiver or Power Supply

 

 

Calib

Calibration pad type

 

 

CML

Common Mode Logic

 

 

CMOS

Complementary Metal-Oxide-Semiconductor

 

 

DDR

Double Data Rate

 

 

GND

Ground Supply

 

 

HCSL

High-speed Current Steering Logic

 

 

I

Input

 

 

I/O

Input/Output

 

 

O

Output

 

 

o/d

Open Drain pin

 

The pin allows multiple drivers simultaneously (wire-OR connection).

 

A pull-up is required to sustain the inactive value.

 

 

Power

VDD Power Supply

 

 

SSTL

Stub Series Terminated Logic for 1.8V

 

 

t/s

Tri-State pin

 

 

XXXn

n - Suffix represents an Active Low Signal

 

 

Table 2: Interface Pin Prefix Codes

 

Interface

 

Prefix

 

 

 

 

 

 

 

Misc

 

N/A

 

 

 

 

 

 

 

DDR SDRAM

 

M_

 

 

 

 

 

 

 

PCI Express

 

PEX_

 

 

 

 

 

 

 

SATA

 

SATA0_

 

 

 

 

SATA1_

 

 

 

 

 

 

 

Gigabit Ethernet

 

GE_

 

 

 

 

 

 

 

USB 2.0

 

USB_

 

 

 

 

 

 

 

JTAG

 

JT_

 

 

 

 

 

 

 

 

 

 

 

Copyright © 2008 Marvell

 

 

Doc. No. MV-S104859-U0 Rev. E

December 2, 2008, Preliminary

Document Classification: Proprietary Information

Page 19

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Image 19
Marvel Group 88F6281 specifications Pin Descriptions, Pin Functions and Assignments Table Key, Interface Pin Prefix Codes