Kontron VMP3 - Manual (Page 83)

VMP3 Configuration
ID 29230, Rev. 01 © 2005 Kontron Modular Computers GmbH Page 4 - 23
29230
.01.UG.VC.050727/091437
P R E L I M I N A R Y
4.6 CompactFlash
Write access to the CompactFlash address area is only possible using word-wide (16-bit) write
commands.
4.7 EEPROM
Access to the EEPROM is effected via the I2C bus controller of the MPC8541E and not the
CPM I2C channel. The EEPROM uses the I2C address 0xA0. Write protection is achieved by
installing a 0 ohm resistor (R22) and removing a 0 ohm resistor (R23). Default is unprotected.
For more detailed information please refer to the manuals for the MICROCHIP 24LC64 or Cat-
alyst 24WC64, and the MOTOROLA MPC8555 (chapter 11, I2C Interface).
4.8 Digital Temperature Sensor, LM75
Access to the onboard digital temperature sensor (DTS) is effected via the I2C bus controller
of the MPC8541E. The DTS uses the I2C address 0x90.
For more detailed information please refer to the manuals for the National Semiconductor
LM75 and the MOTOROLA MPC8555 (chapter 11, I2C Interface).
4.9 Ethernet PHY Addresses
The Gigabit Ethernet PHYs of the VMP3 are accessible via the MDIO interface of the
MPC8541. Their addresses are 0x01 for the PHY of the TSEC1 and 0x00 for the TSEC2. The
PHY of the FCC1 is accessible via the parallel port pins PD[18] (MDIO) and PD[17] (MDC) and
has the PHY address 0x04.
Table 4-33: CompactFlash Register
REGISTER READ/WRITE ADDRESS
Data Register R/W 0xFFFE 0000
Error Register R 0xFFFE 8003
Feature Register W 0xFFFE 8003
Sector Count Register R/W 0xFFFE 8005
Sector Number Register R/W 0xFFFE 8007
Cylinder Low Register R/W 0xFFFE 8009
Cylinder High Register R/W 0xFFFE 800B
Drive/Head Register R/W 0xFFFE 800D
Status Register R 0xFFFE 800F
Device Control Register W 0xFFFE 801D
Alternate Status Register R 0xFFFE 801D
Card Drive Address Register R 0xFFFE 801F