MiTAC E-8590, Service Manual, Page: 29 / 252

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LCD PC E
LCD PC E
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8590 MAINTENANCE
8590 MAINTENANCE
c) Universal Serial Bus controller that is USB v2.0 / 1.1 and Universal HCI v2.0 / 1.1 compliant. The VT8235
includes three root hubs with six function ports with integrated physical layer transceivers. The USB controller
allows hot plug and play and isochronous peripherals to be inserted into the system with universal driver support.
The controller also implements legacy keyboard and mouse support so that legacy software can run transparently in
a non-USB-aware operating system environment.
d) Keyboard controller with PS2 mouse support.
e) Real Time Clock with 256 byte extended CMOS. In addition to the standard ISA RTC functionality, the
integrated RTC also includes the date alarm, century field, and other enhancements for compatibility with the ACPI
standard.
f) Notebook-class power management functionality compliant with ACPI and legacy APM requirements. Multiple
sleep states (power-on suspend, suspend-to-DRAM, and suspend-to-Disk) are supported with hardware automatic
wake-up. Additional functionality includes event monitoring, CPU clock throttling and stop (Intel processor
protocol), PCI bus clock stop control, modular power, clock and leakage control, hardware-based and software-
based event handling, general purpose I/O, chip select and external SMI.
g) Full System Management Bus (SMBus) interface.
h) Integrated bus-mastering dual full-duplex direct-sound AC97-link-compatible sound system.
i) Plug and Play controller that allows complete steerability of all PCI interrupts and internal interrupts / DMA
channels to any interrupt channel. One additional steerable interrupt channel is provided to allow plug and play and
reconfigurability of onboard peripherals for Windows family compliance.