8170 N/B MAINTENANCE

External Glue Integration

---Integrated Pull-up, Pull-down and Series Termination resistors on IDE and processor interface Enhanced Hub I/F buffers improve routing flexibility (Not available with all Memory Controller Hubs)

Firmware Hub (FWH) I/F supports BIOS memory size up to 8 MBs

Low Pin count (LPC) I/F

---Allows connection of legacy ISA and X-Bus devices such as Super I/O

---Supports two Master/DMA devices.

Enhanced DMA Controller

---Two cascaded 8237 DMA controllers

---PCI DMA: Supports PC/PCI — Includes two PC/PCI REQ#/GNT# pairs

---Supports LPC DMA

---Supports DMA Collection Buffer to provide Type-F DMA performance for all DMA channels

Real-Time Clock

---256-byte battery-backed CMOS RAM

---Hardware implementation to indicate century rollover

System TCO Reduction Circuits

---Timers to generate SMI# and Reset upon detection of system hang

---Timers to detect improper processor reset

---Integrated processor frequency strap logic

SM Bus

---Host interface allows processor to communicate via SM Bus

---Slave interface allows an external Micro controller to access system resources

---Compatible with most 2-Wire components that are also I2C compatible

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