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参数资料
| 型号： | ATTM02MG |
| 厂商： | AME, Inc. |
| 英文描述： | Processor Thermal Monitor |
| 中文描述： | 处理器热监视器 |
| 文件页数： | 15/18页 |
| 文件大小： | 156K |
| 代理商： | ATTM02MG |
AME, Inc.
15
ATTM01/ATTM02
Processor Thermal Monitor
Rev. B.01
10. Hardware Monitor Programming Guide
If want to this chip fully operation on PCB board the
first step it need setting the remote and local diode off-
set. This offset can eliminate the PCB trace, binding
wire loading. When software setting the offset register
to reduce side effect of PCB trace to minimum then the
temperature data accuracy is 0.5
.
Setting the bit 5, bit4 of Thermal Sensor Control Reg-
ister can enable or disable the digital filter. When these
bit set to logic one then the digital filter will be turned
on, otherwise, these digital filter will be turned off.
In this chip has a parity check mechanism to avoid
the software reading remote or local temperature data
and the ADC converting temperature into this register. In
other words, when the software reading the temperature
data (register 8
’
h0, 8
’
h1, 8
’
h10, 8
’
h30) and at the
same time the ADC want converting temperature data to
register 8
’
h0, 8
’
h1, 8
’
h10, or 8
’
h30 then the parity
check mechanism will halt the ADC converting tempera-
ture data to these registers before software read finish
these register. In order to make parity check mecha-
nism can work well when read the temperature data it
need read the high byte temperature data at first and
continue read the low byte temperature data, i.e., read
the temperature data register the first need read regis-
ter 8
’
h0 or 8
’
h1 and consecutive read register 8
’
h30
or 8
’
h10.
When the software want to reduce the supply current
it can enable the one shot mode and this mode opera-
tion only at standby mode, i.e., bit 6 of Configuration
register set to
“
1
”
. The software need set the bit 1 of
register 8
’
hF address to
“
1
”
and consecutive set this
bit to
“
1
”
to generate one pulse signal.
The bit 7 (BUSY) of status register will not effect the
reading temperature data. Because of this bits only show
that ADC converting data.
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