Artesyn MVME7100ET Single Board Computer Installation and Use (June 2014) - Manual (Page 73)

Functional Description
MVME7100ET Single Board Computer Installation and Use (6806800K87E) 73
4.3 Processor
The MVME7100ET is designed to support the MC864xD (dual e600 core) processor. The
processor is configured to operate at 1.067 GHz or 1.33 GHz core frequency with a
corresponding DDR400 Mb or DDR533 DDR2 memory bus.
The MVME7100ET supports the power-on reset (POR) pin sampling method for processor reset
configuration. The states of the various configuration pins on the processor are sampled when
reset is de-asserted to determine the desired operating modes. Combinations of pull-up and
pull-down resistors are used to set the options. Some options are fixed and some are selectable
at build time by installing the proper pull-up/pull-down resistor. Refer to the MC864xD
reference manual, listed in
Related Documentation on page 117 , Manufacturers’ Documents on
page 117 for additional details and/or programming information.
4.4 I
2
C Serial Interface and Devices
The MVME7100ET provides the following on-board I
2
C serial devices connected to the
MC864xD I
2
C controller 0 interface:
 8 KB serial EEPROM for VPD
 Two 64 KB serial EEPROMs for user configuration data storage
 Two 256 byte serial EEPROMs for SPD
 Maxim DS1375 Real Time Clock
 On-Semi ADT7146 temperature sensor
 8 KB serial EEPROM on RTM VPD
The RTC implemented on the MVME7100ET provides an alarm interrupt routed to the
MC864xD PIC through the control PLD. A DS32KHz temperature controlled crystal oscillator
provides the RTC clock reference. A battery backup circuit for the RTC is provided on-board.
The On-Semi digital temperature sensor measures of temperature of the board and also
connects to the temperature diode on the MC864xD. The temperature sensor also provides an
alarm interrupt routed to the MC864xD PIC through the control PLD.