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مستندات:
دیتاشیت BCM5784MKMLG
Description:
The BCM5787M is a fully integrated 10/100/1000BASE-T Gigabit Ethernet media access control and physical layer transceiver solution for high-performance network applications. The BCM5787M combines a triple-speed, IEEE 802.3 compliant media access controller (MAC), PCI Express bus interface, on-chip buffer memory, and integrated physical layer transceiver in a single device. It is fabricated in a low-voltage silicon process, providing an ultra-low power solution. By itself, the BCM5787M provides a complete single-chip Gigabit Ethernet NIC or LOM solution.
The BCM5787M includes a 10/100/1000-Mbps Ethernet MAC with full/ half-duplex capability at all speeds. Support for the following 802.3 functions is featured in the MAC: VLAN tagging, layer 2 priority encoding, and full-duplex flow control.
The transceiver is fully compatible with the IEEE 802.3 standard for auto-negotiation of speed. Additionally, several plug-and-play enhancements are included to make the device even more user-friendly. A unique integrated cable analyzer feature allows an end user to self-diagnose any issues with the network cabling that could affect the host machine. A link quality indicator LED and a GUI application give installers an instant visual indication of problems. This includes physical wiring defects or channel conditions, such as excessive cable length, return loss, crosstalk, echo, and noise.
Broadcom's remote cable management and diagnostics software can be used with the device to provide remote management of the cable and a first level of diagnostics and fault isolation.
Application:
Mobile PC NIC
Mobile PC LOM
specifications:
Single-chip device
Integrated 10/100/1000BASE-T transceiver
10/100/1000BASE-T triple-speed MAC
High-speed RISC core with 32-KB cache
SMBus 2.0 controller
On-chip voltage regulation
Wake-on-LAN power switching circuit
PCI Express® v1.1 host interface
1x lane
4-pin interface
Industry-leading power management support to extend system battery life
PCI Power Management Specification, v1.2 compliant
Adheres to the PCI Express Active State Power Management
PCI Express CLKREQ support
Energy detect/cable sense
Super low power mode
Performance features
TCP, IP, and UDP checksum
Microsoft® Large Send Offload
Large burst read
Interrupt coalescing
Robust Wake on LAN (WoL)
Standards-compliant WoL
Innovative out-of-box mode WoL
Hardware power switching
Comprehensive diagnostic and configuration software suite
Industry-compliant alerting features
Alert Standard Format (ASF) 2.0 support
Secure power-on and power-off
Fast hardware authentication (SHA-1, HMAC, MD5)
True hardware random number generation
3.3V I/Os
JTAG (fpBGA package only)