LAN9512I-JZX

The LAN9512I-JZX is an USB 2.0 Hub and 10/100 Ethernet Controller contains an integrated USB 2.0 hub, two integrated downstream USB 2.0 PHYs, an integrated upstream USB 2.0 PHY, a 10/100 Ethernet PHY, a 10/100 Ethernet Controller, a TAP controller and an EEPROM controller. The downstream ports of the LAN9512i hub can be reordered or disabled in any sequence to support multiple platform designs’ with minimum effort. For any port that is disabled, the LAN9512i automatically reorders the remaining ports to match the USB host controller’s port numbering scheme. The 10/100 Ethernet controller provides an integrated Ethernet MAC and PHY which are fully IEEE 802.3 10BASE-T and 802.3u 100BASE-TX compliant. The 10/100 Ethernet controller also supports numerous power management wakeup features, including “Magic Packet”, “Wake on LAN” and “Link Status Change”. These wakeup events can be programmed to initiate an USB remote wakeup.

• Two integrated downstream USB 2.0 PHYs
• One integrated upstream USB 2.0 PHY
• Integrated 10/100 Ethernet MAC with full-duplex support
• Integrated 10/100 Ethernet PHY with HP Auto-MDIX
• Implements reduced power operating modes
• Two downstream ports, one upstream port
• Port mapping and disable support
• Select presence of a permanently hardwired USB peripheral device on a port by port basis
• Advanced power saving features
• Downstream PHY goes into low power mode when port power to the port is disabled
• Full power management with individual or ganged power control of each downstream port
• Integrated USB termination
• Pull-up/pull-down resistors
• Internal short-circuit protection of USB differential signal pins
• Fully compliant with IEEE 802.3/802.3u standards
• Full- and half-duplex support with flow control
• Preamble generation and removal
• Automatic 32-bit CRC generation and checking
• Automatic payload padding and pad removal
• Loop-back modes
• TCP/UDP checksum offload support

Applications

Computers & Computer Peripherals, Automation & Process Control, Embedded Design & Development