Functional Description
CP307
Page 2 - 10
ID 34424, Rev. 3.0
P R E L I M I N A R Y
2.2.7
Serial EEPROM
This EEPROM is connected to the SMBus/I²C bus provided by the ICH7-R.
2.2.8
FLASH Memory
There are two flash device interfaces available as described below, one for the BIOS and one
for the CompactFlash socket.
2.2.8.1
BIOS FLASH (Firmware Hub)
For simple BIOS updating a standard onboard 1 MB Firmware Hub device is used.
The FWH stores both the system BIOS and graphics BIOS. It can be updated as new versions
of the BIOS become available.
2.2.8.2
CompactFlash Socket
A CompactFlash mezzanine adapter CP307-CF is installed on the CP307 4HP versions to
provide CompactFlash interfacing.
CompactFlash is a very small removable mass storage device. It provides true IDE functionality
compatible with the 16-bit ATA/ATAPI-4 interface.
The CompactFlash socket is connected to the IDE port of the ICH7-R and is set to master con-
figuration.
The CP307 supports DMA and both CF type I and CF type II.
Figure 2-1: CompactFlash Socket
Table 2-6: EEPROM Address Map
ADDRESS
FUNCTION
0x000 - 0x0FF
CMOS backup
0x100 - 0x1FF
Production data
0x200 - 0x3FF
OS Bootparameter
0x400 - 0x1FFF
User
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