Pentek 6230 Operating Manual page 193

a
FEATURES
Up to Nine Measurement Channels
Inputs Programmable-to-Measure Analog Voltage, Fan
Speed or External Temperature
External Temperature Measurement with Remote
Diode (Two Channels)
On-Chip Temperature Sensor
Five Digital Inputs for VID Bits
LDCM Support
System Management Bus (SMBus)
Chassis Intrusion Detect
Interrupt and Over Temperature Outputs
Programmable RESET Input Pin
Shutdown Mode to Minimize Power Consumption
Limit Comparison of all Monitored Values
VID0/IRQ0
VID1/IRQ1
VID2/IRQ2
VID3/IRQ3
VID4/IRQ4
FAN1/AIN1
FAN2/AIN2
+V
CCP1
+2.5V /D2+
IN
+5V
IN
+12V
IN
V /D2–
CCP2
D1+
D1–
POWER TO CHIP
V
CC
BANDGAP
TEMPERATURE
SENSOR
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
FUNCTIONAL BLOCK DIAGRAM
V
CC
VID0–3 AND
FAN DIVISOR
REGISTER
100k
PULLUPS
VID4 AND
DEVICE ID
REGISTER
FAN SPEED
COUNTER
TEMPERATURE
CONFIGURATION
INPUT
ATTENUATORS
AND
ANALOG
MULTIPLEXER
System Hardware Monitor with
Remote Diode Thermal Sensing
APPLICATIONS
Network Servers and Personal Computers
Microprocessor-Based Office Equipment
Test Equipment and Measuring Instruments
PRODUCT DESCRIPTION
The ADM1024 is a complete system hardware monitor for
microprocessor-based systems, providing measurement and limit
comparison of various system parameters. Eight measurement
inputs are provided, of which three are dedicated to monitoring
5 V and 12 V power supplies and the processor core voltage.
The ADM1024 can monitor a fourth power-supply voltage by
measuring its own V
remote temperature-sensing diode. Two further pins can be
ADM1024
SERIAL BUS
INTERFACE
CHANNEL
MODE
REGISTER
VALUE AND
LIMIT
REGISTERS
ADDRESS
POINTER
REGISTER
LIMIT
COMPARATORS
INTERRUPT
STATUS
REGISTERS
REGISTER
INT MASK
REGISTERS
INTERRUPT
MASKING
CONFIGURATION
REGISTERS
10-BIT ADC
ANALOG
OUTPUT
REGISTER AND
8-BIT DAC
2.5V
BANDGAP
CHASSIS
REFERENCE
INTRUSION
CLEAR
REGISTER
GND
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
ADM1024
. One input (two pins) is dedicated to a
CC
NTEST OUT/ADD
SDA
SCL
CI
V
CC
100k
THERM
V
CC
100k
INT
NTEST IN/AOUT
V
CC
100k
RESET
World Wide Web Site: http://www.analog.com
© Analog Devices, Inc., 2001
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