MV78100
Hardware Specifications
2.2
Pin Descriptions
This section details all the pins for the different interfaces providing a functional description of each
pin and pin attributes.
Table 1 lists the conventions used to identify I/O or O type pins.
Table 1: Pin Functions and Assignments Table Key
Term
<n>
Definition
Represents port number
Analog Driver/Receiver or Power Supply
Calibration pad type
Common Mode Logic
Complementary Metal-Oxide-Semiconductor
Double Data Rate
Analog
Calib
CML
CMOS
DDR
GND
HCSL
I
Ground Supply
High-speed Current Steering Logic
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
SDR
SSTL
t/s
VDD Power Supply
Single Data Rate
Stub Series Terminated Logic for 1.8V
Tri-State pin
TS
Tri-State Value
XXXn
n - Suffix represents an Active Low Signal
Table 2: Interface Pin Prefixes
Interface
DDR SDRAM
PCI Express
Gigabit Ethernet
USB 2.0
Prefix
M_
PEX_
GE_
USB_
TWSI_
SPI_
TWSI
SPI
MV-S104552-U0 Rev. D
Page 18
Copyright © 2008 Marvell
Document Classification: Proprietary Information
December 6, 2008, Preliminary
MARVELL [ MARVELL TECHNOLOGY GROUP LTD. ]
