Technical data

Overview

1-7

System Command Processor

The System Command Processor is implemented using the

Hitachi H8 IKAP II processor. This processor provides the

following functions:

• Simultaneous support of two external PS/2 ports and

the internal Touch pad.

• I

C bus master for communication to:

− Status LCD

− EEPROM

− Docking interface components

• Hot Key interface.

• Secure password protection.

• System power plane control and power sequencing.

• Battery management interface for charging and the

Smart battery information.

• Status LCD and device monitoring interface.

• Active thermal interface for CPU thermal management.

• Internal keyboard scanning.

Super I/O

I/O support is provided by the National Semiconductor PC87338

chip. This chip supports the following functions:

• Floppy disk controller with Japanese floppy support.

• IEEE 1284 Parallel port.

• Serial infrared support – IrDa 1.1 (115Kbps and 4Mbps).

• 16550 UARTs.

• Full Plug-and-Play support.