LAN9514I-JZX

The LAN9514I-JZX is a high performance Hi-speed USB 2.0 Hub with a 10/100 Ethernet controller. It contains an integrated USB 2.0 hub, four 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 LAN9514i hub can be reordered or disabled in any sequence to support multiple platform designs’ with minimum effort. For any port that is disabled, it automatically reorders the remaining ports to match the USB host controller’s port numbering scheme. The integrated USB hub is fully compliant with the USB 2.0 Specification and will attach to an USB host as a full-speed hub or as a full-/high-speed hub. The hub supports low-speed, full-speed and high-speed (if operating as a High-Speed hub) downstream devices on all of the enabled downstream ports.

• Four 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
• Four downstream ports, one upstream port
• Port mapping and disable support
• Port Swap - Programmable USB diff-pair pin location
• PHY Boost - Programmable USB signal drive strength
• 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 IEEE802.3/802.3u
• 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

Warnungen und Hinweise

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