參數(shù)資料
型號(hào)： ADT7466ARQZ-REEL7
廠商： ANALOG DEVICES INC
元件分類(lèi)： 模擬信號(hào)調(diào)理
英文描述： dBCool Remote Thermal Controller and Voltage Monitor
中文描述： SPECIALTY ANALOG CIRCUIT, PDSO16
封裝： LEAD FREE, MO-137AB, QSOP-16
文件頁(yè)數(shù)： 38/48頁(yè)
文件大?。?/td> 1269K
代理商： ADT7466ARQZ-REEL7
ADT7466
Temperature Reading
If the extended resolution bits of these readings are also being read, the extended resolution registers (0x08, 0x09) should be read first.
Once the extended resolution register gets read, all associated MSB reading registers get frozen until read. Both the extended resolution
register and the MSB registers are frozen.
Table 40. Temperature Reading Registers (Power-On Default = 0x00)
Register Address
Read/Write
Description
0x0D
Read only
Remote Temperature 1 reading (8 MSBs of reading).
0x0E
Read only
Local temperature reading (8 MSBs of reading).
PROCHOT
Table 41. Register 0x0F—PROCHOT Register (Power-On Default = 0x00)
Bit No.
Name
Read/Write
Description
7:1
TMR
Read only
Times for how long THERM input is asserted. These 7 bits read 0 until the PROCHOT assertion
time exceeds 45.52 ms.
0
ASRT/TMR0 Read only
Set high on the assertion of the THERM input.
Cleared on read. If the PROCHOT assertion time exceeds 45.52 ms, this bit is set and becomes the
LSB of the 8-bit TMR reading. This allows PROCHOT assertion times from 45.52 ms to 5.82
seconds to be reported back with a resolution of 22.76 ms.
Interrupt Status 1
Table 42. Register 0x10—Interrupt Status Register 1 (Power-On Default = 0x00)
Bit No.
Name
Read/Write Description
0
FAN2
Read only
Setting this bit to 1 indicates that Fan 2 has dropped below minimum speed or has stalled. This
bit is not set when the DRIVE2 output is off.
1
FAN1
Read only
Setting this bit to 1 indicates that Fan 1 has dropped below minimum speed or has stalled. This
bit is not set when the DRIVE1 output is off.
2
LOC
Read only
Setting this bit to 1 indicates that the local temperature reading is out of limit. This bit is
cleared on a read of the status register only if the error condition clears.
3
REM1
Read only
Setting this bit to 1 indicates that Remote Temperature 1 reading is out of limit. This bit is
cleared on a read of the status register only if the error condition clears.
4
V
CC
Read only
Setting this bit to 1 indicates that the V
CC
reading is out of limit. This bit is cleared on a read of
the status register only if the error condition clears.
5
AIN2(TH2)
Read only
Setting this bit to 1 indicates that the AIN2(TH2) reading is out of limit. This bit is cleared on a
read of the status register only if the error condition clears.
6
AIN1(TH1)/REM2
Read only
Setting this bit to 1 indicates that the AIN1(TH1)/REM2 reading is out of limit. This bit is cleared
on a read of the status register only if the error condition clears.
7
OOL
Read only
Setting this bit to 1 indicates that an out-limit event is latched in Status Register 2. This bit is a
logical OR of all status bits in Status Register 2. Software can test this bit in isolation to
determine whether any of the voltage, temperature, or fan speed readings represented by
Status Register 2 are out of limit. This saves the need to read Status Register 2 during every
interrupt or polling cycle.
Rev. 0 | Page 38 of 48
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