PCI Express to Gigabit Ethernet & Card Reader Host Controller
The JMC251 is a single-chip PCI-Express Gigabit Ethernet combo Card Reader Host controller.
The Gigabit Ethernet function is compliant to IEEE 802.3 Media Access Controller, and IEEE 802.3u
1000BASE-T/100BASE-TX/10BASE-T. The MAC supports IPV4, IPV6, TCP, UDP checksum,
segmentation task-offload, priority encoding and IEEE802.1Q VLAN features. It also supports Receive Side
Scaling (RSS) to balance the loading for received data processing across multiple CPUs. The Ethernet
function supports remote wakeup (including AMD Magic Packet™ and Microsoft® Wake-up frame) in both
ACPI and APM (Advanced Power Management).
The Card Reader Host provides one set of 4-in-1 Combo Memory Card Reader Mechanism, and
supports one of SD/SDHC/MMC/MMC Plus/MS/MS Duo/MS-HG (1/4/8-bit) & xD access at the same time.
Compliant with PCI Express Base Spec. Revision 1.1
Integrated one-lane 2.5GHz PCI Express PHY
Support multi-entry MSI and multi-vector MSI-X.
Compliant with IEEE 802.3, IEEE 802.3u, and IEEE 802.3ab
Integrated 10/100/1000Mbps transceiver
Support Auto Negotiation
Support Microsoft® NDIS 5, NDIS6 Checksum Offload (IPv4, IPv6, IP, TCP, UDP)
Support Microsoft® NDIS 5, NDIS6 Transmit Segmentation Task-offload (Large/Giant send)
Support Receive Side Scaling (RSS)
Support IEEE 802.1P Layer 2 Priority Encoding
Support IEEE 802.1Q VLAN insertion and removal
Support jumbo frame
Supports 1 set of "4-in-1 Combo Memory Card Reader Mechanism"
Compliant with SD Spec. Part 1 Physical Layer Spec. Version 2.00
Compliant with SD Spec. Part A2 SD Host Controller Standard Spec. Version 2.00
Compliant with SD Spec. Part E1 SDIO Spec. Version 2.00
Compliant with SD Spec. Part 2 File System Spec. Version 2.00
Compliant with MultiMediaCard System Spec. Version 4.2
Compliant with Memory Stick Standard Format Spec. Version 1.43-00
Compliant with Memory Stick Standard Memory Stick PRO Format Spec. – without security
spec. – Version 1.02-00
Copyright © 2009 JMicron Technology Corp. All rights reserved.
Datasheet pdf - http://www.DataSheet4U.net/