3

www.fairchildsemi.com

MLP Terminal Description

Note 1: The DSO/DSI serial port terminals have been arranged such that when one device is rotated 180 degrees with the other device the serial connections will properly align

without the need for any traces or cable signals to cross. Other layout orientations may require that traces or cables cross.

PBGA Terminal Assignments

MLP

Terminal

Name

I/O Type

Number of

Terminals

Description of Signals

DP[1:20]

I/O

20

LVCMOS Parallel I/O. Direction controlled by DIRI Terminal

DP[21:24]

I or O

4

LVCMOS Parallel Unidirectional Inputs or Outputs Dependent on State of S1, S2

Terminals

CKREF

IN

1

LVCMOS Clock Input and PLL Reference

STROBE

IN

1

LVCMOS Strobe Signal for Latching Data into the Serializer

CKP

OUT

1

LVCMOS Word Clock Output

DSO

 / DSI

DSO

 / DSI

DIFF-I/O

2

CTL Differential Serial I/O Data Signals (Note 1)

DSO: Refers to output signal pair

DSI: Refers to input signal pair

DSO(I)

: Positive signal of DSO(I) pair

DSO(I)

: Negative signal of DSO(I) pair

CKSI

, CKSI

DIFF-IN

2

CTL Differential Deserializer Input Bit Clock

CKSI: Refers to signal pair

CKSI

: Positive signal of CKSI pair

CKSI

: Negative signal of CKSI pair

CKSO

, CKSO

DIFF-OUT

2

CTL Differential Serializer Output Bit Clock

CKSO: Refers to signal pair

CKSO

: Positive signal of CKSO pair

CKSO

: Negative signal of CKSO pair

S1

IN

1

LVCMOS Mode Selection Pins used to define mode of operation for some

terminals. The control terminals, DP[21:24] can be set as 4 terminals in the same

direction or two in each direction.

S2

IN

1

DIRI

IN

1

LVCMOS Control Input

Used to control direction of Data Flow

DIRO

OUT

1

LVCMOS Control Output

Inversion of DIRI

Supply

1

Power Supply for Parallel I/O and Translation Circuitry

Supply

1

Power supply for core circuitry and serial I/O

Supply

1

Power Supply for Analog PLL Circuitry

GND

Supply

0

Use Bottom Ground Plane for Ground Signals

123456

A

DP[9]

DP[7]

DP[5]

DP[3]

DP[1]

CKREF

B

DP[11]

DP[10]

DP[6]

DP[2]

STROBE

DIRO

C

CKP

DP[12]

DP[8]

DP[4]

CKSO



CKSO



D

DP[13]

DP[14]

GND

DSO

 / DSI

DSO

 / DSI

E

DP[15]

DP[16]

GND

CKSI



CKSI



F

DP[17]

DP[18]

DP[21]

S2

DIRI

J

DP[19]

DP[20]

DP[22]

DP[23]

DP[24]

S1