FW82801DB

Product Summary

The FW82801DB is an I/O Controller Hub 4 Mobile. It incorporates a variety of PCI functions that are divided into three logical devices (29, 30, and 31) on PCI Bus 0 and one device on Bus 1. Device 30 is the Hub Interface-To-PCI bridge. Device 31 contains all the other PCI functions, except the USB Controllers and the LAN Controller.The FW82801DB PCI interface provides a 33-MHz, Rev. 2.2 compliant implementation. All PCI signals are 5-V tolerant, except PME#. The FW82801DB integrates a PCI arbiter that supports up to six external PCI bus masters in addition to the internal ICH4 requests.

Parametrics

FW82801DB absolute maximum ratings: (1)Voltage on Any 3.3 V Pin with Respect to Ground:-0.5V to Vcc3_3+0.5V; (2)Voltage on Any 5 V Tolerant Pin with Respect to Ground (VREF=5V):–0.5V to VREF + 0.5 V; (3)1.5 V Supply Voltage with Respect to Vss:–0.5V to +2.1V; (4)1.8 V Supply Voltage with Respect to Vss:–0.5V to +2.1V; (5)3.3 V Supply Voltage with Respect to Vss:–0.5V to +4.6V; (6)5.0 V Supply Voltage (Vref) with Respect to Vss:–0.5V to +5.5V.

Features

FW82801DB features: (1)Supports PCI Revision 2.2 Specification at 33 MHz; (2)133 MB/sec maximum throughput; (3)Supports up to 6 master devices on PCI; (4)One PCI REQ/GNT pair can be given higher arbitration priority(intended for external 1394 host controller); (5)Support for 44-bit addressing on PCI using DAC protocol; (6)WfM 2.0 and IEEE 802.3 compliant; (7)LAN Connect Interface (LCI); (8)10/100 Mbit/sec ethernet support; (9)Supports “Native Mode” register and interrupts; (10)Independent timing of up to 4 drives, with separate primary and secondary IDE cable connections; (11)Ultra ATA/100/66/33, BMIDE and PIO modes ; (12)Tri-state modes to enable swap bay; (13)Includes 3 UHCI host controllers that support 6 external ports; (14)New: Includes 1 EHCI high-speed USB 2.0 Host Controller that supports all six ports; (15)New: Supports a USB 2.0 high-speed debug port; (16)Supports wake-up from sleeping states S1-M–S5; (17)Supports legacy keyboard/mouse software; (18)Support up to 8 PCI interrupt pins; (19)Supports PCI 2.2 message signaled interrupts; (20)Two cascaded 82C59 with 15 interrupts; (21)Integrated I/O APIC capability with 24 interrupts; (22)Supports serial interrupt protocol ; (23)Supports processor system bus interrupt delivery.

Diagrams