DFI WL9A3, Руководство пользователя, Страница: 15 / 23

13
Chapter 2
HARDWARE INSTALLATION
User's Manual | WL9A3
Pin Types
I Input to the Module
O Output from the Module
I/O Bi-directional input / output signal
OD Open drain output
X
Signal Descriptions
HDA Signals Descriptions
Signal Pin# Pin Type Pwr Rail /Tolerance SH960MD PU/PD Module Base Specification R2.1 Description COM Express Carrier Design Guide R2.0 Description
HDA_RST# A30 O CMOS 3.3V Suspend/3.3V series 33Ω resistor Reset output to CODEC, active low. CODEC Reset.
HDA_SYNC A29 O CMOS 3.3V/3.3V series 33Ω resistor Sample-synchronization signal to the CODEC(s). Serial Sample Rate Synchronization.
HDA_BITCLK A32 I/O CMOS 3.3V/3.3V series 33Ω resistor Serial data clock generated by the external CODEC(s). 24 MHz Serial Bit Clock for HDA CODEC.
HDA_SDOUT A33 O CMOS 3.3V/3.3V series 33Ω resistor Serial TDM data output to the CODEC. Audio Serial Data Output Stream.
HDA_SDIN0 B30 I/O CMOS 3.3V Suspend/3.3V Serial TDM data inputs from up to 3 CODECs. Audio Serial Data Input Stream from CODEC[0:2].
HDA_SDIN1 B29 I/O CMOS 3.3V Suspend/3.3V
HDA_SDIN2 B28 I/O CMOS 3.3V Suspend/3.3V NC
AC97/HDA Signals Descriptions
Signal Pin# Pin Type Pwr Rail /Tolerance WL9A3 Carrier Board Description
HAD_RST# A30 O CMOS 3.3V Suspend/3.3V Serise 33 ohm Connect to CODEC pin 11 RESET# Reset output to CODEC, active low.
HDA_SYNC A29 O CMOS 3.3V/3.3V Serise 33 ohm Connect to CODEC pin 10 SYNC Sample-synchronization signal to the CODEC(s).
HDA_BITCLK A32 I/O CMOS 3.3V/3.3V Serise 33 ohm Connect to CODEC pin 6 BIT_CLK Serial data clock generated by the external CODEC(s).
HDA_SDOUT A33 O CMOS 3.3V/3.3V Serise 33 ohm Connect to CODEC pin 5 SDATA_OUT Serial TDM data output to the CODEC.
HDA_SDIN2 B28 I/O CMOS 3.3V Suspend/3.3V Connect 33 Ω in series to CODEC2 pin 8 SDATA_IN Serial TDM data inputs from up to 3 CODECs.
HDA_SDIN1 B29 I/O CMOS 3.3V Suspend/3.3V Connect 33 Ω in series to CODEC1 pin 8 SDATA_IN
HDA_SDIN0 B30 I/O CMOS 3.3V Suspend/3.3V Connect 33 Ω in series to CODEC0 pin 8 SDATA_IN
Gigabit Ethernet Signals Descriptions
Signal Pin# Pin Type Pwr Rail /Tolerance WL9A3 Carrier Board Description
GB A13 I/O Analog 3.3V max Suspend Connect to Magnetics Module MDI0+/- Gigabit Ethernet Controller 0: Media Dependent Interface Differen-
tial 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 follow-
ing:
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+/-
GBE0_MDI0- A12 I/O Analog 3.3V max Suspend
GB A10 I/O Analog 3.3V max Suspend Connect to Magnetics Module MDI1+/-
GBE0_MDI1- A9 I/O Analog 3.3V max Suspend
GB A7 I/O Analog 3.3V max Suspend Connect to Magnetics Module MDI2+/-
GBE0_MDI2- A6 I/O Analog 3.3V max Suspend
GB A3 I/O Analog 3.3V max Suspend Connect to Magnetics Module MDI3+/-
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
150Ω 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
150Ω to 3.3VSB
Gigabit Ethernet Controller 0 100 Mbit / sec link indicator, active
low.
GBE0_
LINK1000#
A5 OD CMOS 3.3V Suspend/3.3V Connect to LED and recommend current limit resistor
150Ω to 3.3VSB
Gigabit Ethernet Controller 0 1000 Mbit / sec link indicator, active
low.
GBE0_SDP A49 I/O 3.3V Suspend/3.3V N/A Gigabit Ethernet Controller 0 Software-Definable Pin. Can also be
used for IEEE1588
support such as a 1pps signal.