ASC7611 ETC2 [List of Unclassifed Manufacturers], ASC7611 Datasheet - Page 17

• Manufacturer Part Number: ASC7611
• Description: HARDWARE MONITOR WITH INTEGRATED FAN CONTROL
• Manufacturer: ETC2 [List of Unclassifed Manufacturers]

Setting the Ready/Lock/Start/Override register Lock bit has no effect on these registers.
Status Registers
Register 41h: Interrupt Status Register 1
The Interrupt Status Register 1 bits will be automatically set, by the aSC7611, whenever a fault condition is detected. A fault
condition is detected whenever a measured value is outside the window set by its limit registers. ZN1 bit will be set when a
diode fault condition, such as an open or short, is detected. More than one fault may be indicated in the interrupt register
when read. The register will hold a set bit(s) until the event is read by software. The contents of this register will be cleared
(set to 0) automatically by the aSC7611 after it is read by software, if the fault condition no longer exists. Once set, the
Interrupt Status Register 1 bits will remain set until a read event occurs, even if the fault condition no longer exists. This
register is read-only – a write to this register has no effect.
© Andigilog, Inc. 2006
Register
Address
41h
Bit
0
1
2
3
4
5
6
7
VCCP
Input
2.5V
3.3V
12V
5V
Read/
Write
Error in Status
R
Zone 1 Limit
Zone 2 Limit
Zone 3 Limit
Vccp Limits
2.5V Limits
3.3V Limits
Register 2
Exceeded
Exceeded
Exceeded
Exceeded
Exceeded
Exceeded
Exceeded
5V Limits
Nominal
Voltage
Name
2.25V
12.0V
2.5V
3.3V
5.0V
Interrupt Status 1
Register Name
Register Reading
R/W
at Nominal
R
R
R
R
R
R
R
R
Voltage
C0h
C0h
C0h
C0h
C0h
Table 3 Voltage Limits vs Register Setting
Default
Table 4 Interrupt Status Register 1
(MSB)
Bit 7
ERR
0
0
0
0
0
0
0
0
Maximum
Bit 6
The aSC7611 automatically sets this bit to 1 when the 2.5V input voltage is
less than or equal to the limit set in the 2.5V Low Limit register or greater than
the limit set in the 2.5V High Limit register.
The aSC7611 automatically sets this bit to 1 when the VCCP input voltage is
less than or equal to the limit set in the VCCP Low Limit register or greater
than the limit set in the VCCP High Limit register.
The aSC7611 automatically sets this bit to 1 when the 3.3V input voltage is
less than or equal to the limit set in the 3.3V Low Limit register or greater than
the limit set in the 3.3V High Limit register.
The aSC7611 automatically sets this bit to 1 when the 5V input voltage is less
than or equal to the limit set in the 5V Low Limit register or greater than the
limit set in the 5V High Limit register.
The aSC7611 automatically sets this bit to 1 when the temperature input
measured by the Remote1- and Remote1+ inputs is less than or equal to the
limit set in the Processor (Zone 1) Low Temp register or more than the limit set
in the Processor (Zone 1) High Temp register. This bit will be set when a
diode fault is detected.
The aSC7611 automatically sets this bit to 1 when the temperature input
measured by the internal temperature sensor is less than or equal to the limit
set in the thermal (Zone 2) Low Temp register or greater than the limit set in
the Internal (Zone 2) High Temp register.
The aSC7611 automatically sets this bit to 1 when the temperature input
measured by the second remote temperature sensor is less than or equal to
the limit set in the thermal (Zone 3) Low Temp register or greater than the limit
set in the Internal (Zone 3) High Temp register.
If there is a set bit in Status Register 2, this bit will be set to 1.
Voltage
ZN3
16.00V
3.32V
3.00V
4.38V
6.64V
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Bit 5
ZN2
- 17 -
Register Reading
at Maximum
Bit 4
ZN1
Voltage
FFh
FFh
FFh
FFh
FFh
Bit 3
5V
Description
Minimum
Voltage
Bit 2
3.3V
3.0V
0V
0V
0V
0V
VCCP
Bit 1
Register Reading
October 2006 - 70A05007
at Minimum
Voltage
AFh
00h
00h
00h
00h
aSC7611
(LSB)
Bit 0
2.5V
Default
Value
00