
VT8231
Preliminary Revision 0.8
October 29, 1999
-2-
Features
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Fast Ethernet Controller
High performance PCI master interface with scatter / gather and bursting capability
Standard MII interface to PHYceiver
1 / 10 / 100 MHz full and half duplex operation
Transmit data buffer byte alignment for low CPU utilization
Separate 2K byte FIFOs for receive and transmit of full Ethernet packets
Flexible dynamically loadable EEPROM algorithm
Physical, Broadcast, and Multicast address filtering using hashing function
Flexible wakeup events: link status change, magic packet, unicast physical address match, predefined pattern match
Software controllable power down
UltraDMA-33 / 66 / 100 Master Mode PCI EIDE Controller
Dual channel master mode PCI supporting four Enhanced IDE devices
Transfer rate up to 100MB/sec to cover up to PIO mode 4, multi-word DMA mode 2, and UltraDMA mode 5
Thirty-two levels (doublewords) of prefetch and write buffers per channel
Dual DMA engine for concurrent dual channel operation
Bus master programming interface for SFF-8038i rev.1.0 and Windows-95 / 98 / 2000 compliant
Full scatter gather capability
Support ATAPI compliant devices including DVD devices
Support PCI native and ATA compatibility modes
Complete software driver support
Integrated Super IO Controller
Supports 2 serial ports, IR port, parallel port, and floppy disk controller functions
Two UARTs for Complete Serial Ports
Programmable character lengths (5,6,7,8)
Even, odd, stick or no parity bit generation and detection
Programmable baud rate generator
High speed baud rate (230Kbps, 460Kbps) support
Independent transmit/receiver FIFOs
Modem Control
Plug and play with 96 base IO address and 12 IRQ options
Fast IR (FIR) port
IrDA 1.0 SIR and IrDA 1.1 FIR compliant
IR function through the second serial port
Infrared-IrDA (HPSIR) and ASK (Amplitude Shift Keyed) IR
Multi-mode parallel port
Standard mode, ECP and EPP support
Dynamic and static switch between parallel port pinout and FDC pinout
Plug and play with 192 base IO address, 12 IRQ and 4 DMA options
Floppy Disk Controller
16 bytes of FIFO
Data rates up to 1Mbps
Perpendicular recording driver support
Two FDDs with drive swap support
Plug and play with 48 base IO address, 12 IRQ and 4 DMA options