User`s guide

68 • Appendix C

• Support SDR and sensor reading

C.1.1 Flash Organization

C.1.2 Host Interface

The Host and system BIOS communicate with Zircon through the

LPC-bus. Two software interface types are provided:

• Keyboard Controller Style Interface (KCS) – The KCS interface

model consists of a set of two registers. One of the registers is the

Data In/Out register. The other is the Command/Status register –

Command data is written to and Status information is read from the