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Design Guide 15
2.2 Applications
The GD31244 may be used to build a Serial ATA Host Bus Adapter which connects to the PCI-X
bus. Control for external activity LEDs, a 37.5 MHz Crystal, a voltage regulator and some external
resistors and capacitors are needed.
Figure 2. Quad Serial ATA Host Bus Adapter
B0418-02
Intel
®
31244
PCI-X
to
Serial
ATA
Controller
PCI-X Bus
JTAG
P_AD[63:0]
VIO VCC
2.5V3.3V
P_CBE[7:0]
P_PAR
P_PAR64
P_FRAME#
CAP0
CAP1
VA1
P_TRDY#
P_REQ64#
P_IRDY#
P_ACK64#
P_GNT#
P_CLK
P_RST#
P_IDSEL
P_REQ#
P_STOP#
P_DEVSEL#
P_SERR#
P_PERR#
V
CC5REF
P_INTA#
TDI
TD0
TMS
TCK
TRST#
CLKIN
CLKOUT
RBIAS
V18A
V18B
Serial
ATA
Port 0
Connector
Oscillator
Regulator
37.5 MHz
0.1 µF10 µF
1000
Ω, 1%
CAP2
CAP3
0.1 µF
0.015 µF
2.5V
2.5V
0.01 µF
0.01 µF
18 pF
18 pF
0.1 µF
10 µF
0.01 µF
0.01 µF
Serial
ATA
Port 1
Connector
0.01 µF
0.01 µF
0.01 µF
0.01 µF
Serial
ATA
Port 2
Connector
0.01 µF
0.01 µF
0.01 µF
0.01 µF
Serial
ATA
Port 3
Connector
0.01 µF
0.01 µF
0.01 µF
0.01 µF
RX0P
RX0N
TX0P
TX0N
RX1P
RX1N
TX1P
TX1N
RX2P
RX2N
TX2P
TX2N
RX3P
RX3N
TX3P
TX3N
LED0
LED1
LED2
LED3
VA0
.1µF,
0603,
x7R
.1µF,
0603,
x7R
22µF,
TANT,
EIA-A,
6.3V
22µF,
TANT,
EIA-A,
6.3V
20Ω
0603, 1%
10 µH
10 µH
.1µF,
0603,
x7R
.1µF,
0603,
x7R
22µF,
TANT,
EIA-A,
6.3V
+
+
+
+
22µF,
TANT,
EIA-A,
6.3V
20Ω
0603, 1%
+
+