4-10 Hardware Functional Overview
Supports Optional I/O APIC
Serial Interrupt Input
n
Timers Based on 82C54
System Timer, Refresh Request, Speaker Tone Output
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USB
Two USB 1.0 Ports for Serial Transfers at 12 or 1.5Mbit/sec
Supports Legacy Keyboard and Mouse Software with USB-based
Keyboard and Mouse
Supports UHCI Design Guide
n
SMBus
Host Interface Allows CPU to Communicate Via SMBus
Slave Interface Allows External SMBus Master to Control Resume
Events
n
Real-Time Clock
n
Microsoft Win95 Compliant
n
324 mBGA Package
Clock Frequency Generator
The notebook utilizes the IMI XG571 chip to supply the system clock needed to
run the computer. The following are the available clock frequencies:
n
System clock :
Clock generator XG571 support: (running on 3.3Vor 2.5V for
Tillamook)
60/66 MHz for Intel Tillamook Mobile CPU at 233 MHz
60/66 MHz for Pentium-II Mobile Module at 233/266 MHz
30/33 MHz for PCI device bus clock use
48 MHz for PIIX4EB
14.318 MHz for PIIX4 refresh, VGA NMG4 & Super I/O use
n
14.318 MHz XTAL for XG571 use
n
32.768 kHz XTAL for RTC real time clock
n
8.0 MHz XTAL for K/B controller use
n
49.152 MHz OSC for sound blaster use
