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14 Design Guide
Intel
®
31244 PCI-X to Serial ATA Controller
Overview
Feature Highlights:
• Four SATA Channels at 1.5 Gbits/s
• Serial ATA: High speed Serialized AT Attachment Specification, Revision 1.0e Compliant
• 64-bit/133 MHz PCI-X Bus. Backwards compatible to 32-bit/33 MHz and 64-bit/66 MHz
• Compatible with existing Operating Systems
• Supports native PCI IDE
• Hot-Plug Drives
• Supports Master/Slave Mode for Compatibility with existing Operating Systems
• Supports SATA Direct Port Access (Master/Master Mode)
• Independent DMA Masters for each SATA Channel
• 3.3 V and 2.5 V Supply, 2 W maximum
Figure 1. Intel
®
31244 PCI-X to Serial ATA Controller Block Diagram
A9194-03
Dual
Port
FIFO
and
I/O
Transport
Engine
PCI-X
64-bit
133 MHz
Interface
Serializer
00B
Deserializer
Serializer
Serializer
Deserializer
Deserializer
Serializer
Deserializer
TX0P
TX0N
RX0N
RX0P
00B
TX1P
TX1N
LED0
P_AD(63:0)
LED1
LED2
LED3
RX1N
RX1P
00B
TX2P
TX2N
RX2N
RX2P
00B
TX3P
TX3N
RX3N
RX3P
P_CBE(7:0)
P_PAR
P_PAR64
P_FRAME#
P_TRDY#
P_REQ64#
P_IRDY#
P_ACK64#
P_GNT#
P_CLK
P_RST#
P_REQ#
P_STOP#
P_DEVSEL#
P_SERR#
P_PERR#
P_INTA#
Serial ATA
Transport/Link
Layer
PHY
I/F
Serial ATA
Transport/Link
Layer
PHY
I/F
Serial ATA
Transport/Link
Layer
PHY
I/F
Serial ATA
Transport/Link
Layer
PHY
I/F