Marvel 88F6281 User Manual
Pin and Signal Descriptions
Pin Descriptions
Copyright © 2008 Marvell
Doc. No. MV-S104859-U0 Rev. E
December 2, 2008, Preliminary
Document Classification: Proprietary Information
Page 19
1.2
Pin Descriptions
This section details all the pins for the different interfaces providing a functional description of each
pin and pin attributes.
pin and pin attributes.
defines the abbreviations and acronyms used in the pin description tables.
Table 1:
Pin Functions and Assignments Table Key
Te r m
D e f i n i t i o n
[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.
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
I n t e r f a c e
P r e f i x
Misc
N/A
DDR SDRAM
M_
PCI Express
PEX_
SATA
SATA0_
SATA1_
SATA1_
Gigabit Ethernet
GE_
USB 2.0
USB_
JTAG
JT_