Description 17
IDE Controller
IDE is a 16 bit interface for intelligent disk drives with disk controller electronics onboard. The
PCI/ISA/IDE Accelerator, also known as PIIX4e, is a multifunction device on the server board that
acts as a PCI based Fast IDE controller. The device controls:
PIO and IDE DMA/bus master operations
Mode 4 timings
Transfer rates up to 33 MB/s
Buffering for PCI/IDE burst transfers
Master/slave IDE mode
Up to two devices per channel; two channels, IDE0 and IDE1
NOTE
18 inch maximum length of IDE cable on each channel: You can connect
an IDE signal cable, up to a maximum of 18 inches each, to each
IDE connector on the server board. Each cable can support two devices, one
at the end of the cable and one 6 inches from the end of the cable.
Network Controller
The server board includes a 10BASE-T/100BASE-TX network solution based on the Intel 82559
single chip Fast Ethernet PCI Bus Controller. As a PCI bus master, the controller can burst data at
up to 132 MB/s. The controller contains two receive and transmit FIFO buffers that prevent data
overruns or underruns while waiting for access to the PCI bus. The controller has the following:
32 bit PCI bus master interface (direct drive of bus), compatible with PCI Bus Specification,
Revision 2.1
Chained memory structure with improved dynamic transmit chaining for enhanced
performance
Programmable transmit threshold for improved bus utilization
Early receive interrupt for concurrent processing of receive data
On-chip counters for network management
Autodetect and autoswitching for 10 or 100 Mbps network speeds
Support for both 10 Mbps and 100 Mbps networks, capable of full or half duplex, with
back-to-back transmit at 100 Mbps
The network status LEDs on the server board indicate:
Transmit/receive activity on the LAN
Valid link to the LAN
10/100 Mbps transfer mode