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VT8235 Datasheet(PDF) 9 Page - VIA Technologies, Inc. |
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VT8235 Datasheet(HTML) 9 Page - VIA Technologies, Inc. |
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9 / 145 page  VT8235 V-Link South Bridge Revision 1.22 October 24, 2002 -3- Product Features UrpuytvrÃDp XrÃ8rp x System Management Bus Interface − Host interface for processor communications − Slave interface for external SMBus masters x Universal Serial Bus Controller − USB v2.0 and Enhanced Host Controller Interface (EHCI) v1.0 compatible − USB v1.1 and Universal Host Controller Interface (UHCI) v1.1 compatible − Eighteen level (doublewords) data FIFO with full scatter and gather capability − Three root hubs and six function ports − Integrated physical layer transceivers with optional over-current detection status on USB inputs − Legacy keyboard and PS/2 mouse support x Sophisticated PC2001-Compatible Mobile Power Management − Supports both ACPI (Advanced Configuration and Power Interface) and legacy (APM) power management − ACPI v1.0 Compliant − APM v1.2 Compliant − CPU clock throttling and clock stop control for complete ACPI C0 to C3 state support − PCI bus clock run, Power Management Enable (PME) control, and PCI/CPU clock generator stop control − Supports multiple system suspend types: power-on suspends with flexible CPU/PCI bus reset options, suspend to DRAM, and suspend to disk (soft-off), all with hardware automatic wake-up − Multiple suspend power plane controls and suspend status indicators − One idle timer, one peripheral timer and one general purpose timer, plus 24/32-bit ACPI compliant timer − Normal, doze, sleep, suspend and conserve modes − Global and local device power control − System event monitoring with two event classes − Primary and secondary interrupt differentiation for individual channels − Dedicated input pins for power and sleep buttons, external modem ring indicator, and notebook lid open/close for system wake-up − 32 general purpose input ports and 32 output ports − Multiple internal and external SMI sources for flexible power management models − Enhanced integrated real time clock (RTC) with date alarm, month alarm, and century field − Thermal alarm on external temperature sensing circuit − I/O pad leakage control x Plug and Play Controller − PCI interrupts steerable to any interrupt channel − Steerable interrupts for integrated peripheral controllers: USB, floppy, serial, parallel, and audio − Microsoft Windows XPTM, Windows NTTM, Windows 2000TM, Windows 98TM and plug and play BIOS compliant x Built-in NAND-tree pin scan test capability x 0.22um, 2.5V, low power CMOS process x Single chip 27 x 27 mm, 1.0 mm ball pitch, 487 pin BGA |
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