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Com express connectors signal description, Chapter 3 – DFI CR960-HM76 User Manual

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Chapter 3 Hardware Installation

19

Chapter 3

COM Express Connectors Signal Description

Signal

Pin#

Pin Type

Pwr Rail /Tolerance

CR960

Carrier Board

Description

AC/HAD_RST#

A30

O CMOS

3.3V Suspend/3.3V

Connect to CODEC pin 11 RESET#

Reset output to CODEC, active low.

AC/HDA_SYNC

A29

O CMOS

3.3V/3.3V

PU 1K to 3.3VSB

Connect to CODEC pin 10 SYNC

Sample-synchronization signal to the CODEC(s).

AC/HDA_BITCLK

A32

I/O CMOS

3.3V/3.3V

Connect to CODEC pin 6 BIT_CLK

Serial data clock generated by the external CODEC(s).

AC/HDA_SDOUT

A33

O CMOS

3.3V/3.3V

Connect to CODEC pin 5 SDATA_OUT

Serial TDM data output to the CODEC.

AC/HDA_SDIN2

B28

I/O CMOS

3.3V Suspend/3.3V

Connect 33 ƻ in series to CODEC2 pin 8 SDATA_IN

AC/HDA_SDIN1

B29

I/O CMOS

3.3V Suspend/3.3V

Connect 33 ƻ in series to CODEC1 pin 8 SDATA_IN

AC/HDA_SDIN0

B30

I/O CMOS

3.3V Suspend/3.3V

Connect 33 ƻ in series to CODEC0 pin 8 SDATA_IN

Signal

Pin#

Pin Type

Pwr Rail /Tolerance

CR960

Carrier Board

Description

GBE0_MDI0+

A13

I/O Analog

3.3V max Suspend

GBE0_MDI0-

A12

I/O Analog

3.3V max Suspend

GBE0_MDI1+

A10

I/O Analog

3.3V max Suspend

GBE0_MDI1-

A9

I/O Analog

3.3V max Suspend

GBE0_MDI2+

A7

I/O Analog

3.3V max Suspend

GBE0_MDI2-

A6

I/O Analog

3.3V max Suspend

GBE0_MDI3+

A3

I/O Analog

3.3V max Suspend

GBE0_MDI3-

A2

I/O Analog

3.3V max Suspend

GBE0_ACT#

B2

OD CMOS

3.3V Suspend/3.3V

Connect to LED and recommend current limit
resistor 150ȟ to 3.3VSB

Gigabit Ethernet Controller 0 activity indicator, active low.

GBE0_LINK#

A8

OD CMOS

3.3V Suspend/3.3V

NC

Gigabit Ethernet Controller 0 link indicator, active low.

GBE0_LINK100#

A4

OD CMOS

3.3V Suspend/3.3V

Connect to LED and recommend current limit
resistor 150ȟ to 3.3VSB

Gigabit Ethernet Controller 0 1000 Mbit / sec link indicator, active low.

GBE0_LINK1000#

A5

OD CMOS

3.3V Suspend/3.3V

Connect to LED and recommend current limit
resistor 150ȟ to 3.3VSB

Gigabit Ethernet Controller 0 1000 Mbit / sec link indicator, active low.

Signal

Pin#

Pin Type

Pwr Rail /Tolerance

CR960

Carrier Board

Description

SATA0_TX+

A16

O SATA

AC coupled on Module

AC Coupling capacitor

SATA0_TX-

A17

O SATA

AC coupled on Module

AC Coupling capacitor

SATA0_RX+

A19

I SATA

AC coupled on Module

AC Coupling capacitor

SATA0_RX-

A20

I SATA

AC coupled on Module

AC Coupling capacitor

SATA1_TX+

B16

O SATA

AC coupled on Module

AC Coupling capacitor

SATA1_TX-

B17

O SATA

AC coupled on Module

AC Coupling capacitor

SATA1_RX+

B19

I SATA

AC coupled on Module

AC Coupling capacitor

SATA1_RX-

B20

I SATA

AC coupled on Module

AC Coupling capacitor

SATA2_TX+

A22

O SATA

AC coupled on Module

AC Coupling capacitor

SATA2_TX-

A23

O SATA

AC coupled on Module

AC Coupling capacitor

SATA2_RX+

A25

I SATA

AC coupled on Module

AC Coupling capacitor

SATA2_RX-

A26

I SATA

AC coupled on Module

AC Coupling capacitor

SATA3_TX+

B22

O SATA

AC coupled on Module

AC Coupling capacitor

SATA3_TX-

B23

O SATA

AC coupled on Module

AC Coupling capacitor

SATA3_RX+

B25

I SATA

AC coupled on Module

AC Coupling capacitor

SATA3_RX-

B26

I SATA

AC coupled on Module

AC Coupling capacitor

ATA_ACT#

A28

I/O CMOS

3.3V / 3.3V

PU 10K to 3.3V

Connect to LED and recommend current limit
resistor 220ƻ to 3.3V

ATA (parallel and serial) or SAS activity indicator, active low.

Connect to Magnetics Module MDI0+/-

Connect to Magnetics Module MDI1+/-

Connect to Magnetics Module MDI2+/-

Connect to Magnetics Module MDI3+/-

Connect to SATA1 Conn RX pin

Connect to SATA0 Conn TX pin

Connect to SATA0 Conn RX pin

Connect to SATA1 Conn TX pin

Connect to SATA3 Conn RX pin

Connect to SATA2 Conn TX pin

Connect to SATA2 Conn RX pin

Connect to SATA3 Conn TX pin

Pin Types
I Input to the Module
O Output from the Module
I/O Bi-directional input / output signal
OD Open drain output

AC97/HDA Signals Descriptions

Serial TDM data inputs from up to 3 CODECs.

Gigabit Ethernet Signals Descriptions

Serial ATA or SAS Channel 0 transmit differential pair.

Serial ATA or SAS Channel 0 receive differential pair.

Serial ATA or SAS Channel 3 transmit differential pair.

Serial ATA or SAS Channel 3 receive differential pair.

Serial ATA or SAS Channel 2 receive differential pair.

Serial ATA or SAS Channel 2 transmit differential pair.

Gigabit Ethernet Controller 0: Media Dependent Interface Differential
Pairs 0,1,2,3. The MDI can operate in 1000, 100 and 10 Mbit / sec
modes. Some pairs are unused in some modes, per the following:
1000BASE-T 100BASE-TX 10BASE-T
MDI[0]+/- B1_DA+/- TX+/- TX+/-
MDI[1]+/- B1_DB+/- RX+/- RX+/-
MDI[2]+/- B1_DC+/-
MDI[3]+/- B1_DD+/-

Serial ATA or SAS Channel 1 receive differential pair.

SATA Signals Descriptions

Serial ATA or SAS Channel 1 transmit differential pair.

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