Publication No. HRMCP9 Rev. B
Function Blocks 61
7.17.5
Temperature Sensors LM75
Two LM75 temperature sensors from National Semiconductors are implemented on
the CR9 board. The first sensor shows the average between the air temperature
below the heatsink and the PCB temperature in the CPU area. With the second LM75
the air temperature across the CPCI bridge and the Ethernet controller can be read.
This reading is also influenced by the PCB temperature is measured below the
heatsink.
7.17.6
Serial EEPROM
For storage of user data a serial EEPROM is implemented on the CR9 board. The
user EEPROM is a 24C512 type with 64 KByte. More information about writing and
reading the contents can be found in the data sheets from the manufacturer (e.g.
Microchip Technology, SGS Thomson, Atmel, Catalyst and many others).
7.17.7
Power Management Event
A Power Management Event can be initiated on CR9 by one of the following events.
Table 7-6 Power Management Events
Event
Description
ENUM
Wake CR9
a
if a non-system board is removed or inserted
REMOVE
Wake CR9 if user wants to remove this CR9
Wake on LAN
Wake CR9 by Ethernet event
Wake on IO
Wake CR9 by IO-device i.e. Modem, KB, MS, etc.
a
CR9 in System slot
7.17.8
INTP, INTS
The INTP and INTS signals (PICMG2.0) are available on the J7001_D4/E4. For CR9 in
System Slot, the high active INTP is used as a steerable interrupt which is routed to
any legacy ISA interrupt. In Peripheral Slot, INTP can be generated to trigger an
interrupt in the system board. The corresponding interrupt for INTP is selectable via
BIOS Setup.
NOTE
Only one peripheral board is allowed to use INTP.
For CR9 in System Slot, the INTS signal can be used as serialized interrupt, in
compliance with the ‘Serialized IRQ Support for PCI Systems’ specification, Rev. 6.0.
INTS is synchronous to the PCI clock and has the requirement of meeting the PCI
specification.
7.17.9
ENUM#
ENUM (PICMG 2.0, open-collector) is available on J7001_C25. This signal is to be
driven by Hot Swap compatible boards after insertion and prior to removal.