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參數(shù)資料
| 型號(hào)： | LPC47M182-NR |
| 廠商： | STANDARD MICROSYSTEMS CORP |
| 元件分類： | 外設(shè)及接口 |
| 英文描述： | ADVANCED I/O CONTROLLER WITH MOTHERBOARD GLUE LOGIC |
| 中文描述： | MULTIFUNCTION PERIPHERAL, PQFP128 |
| 封裝： | 14 X 20 MM, 2.70 MM HEIGHT, QFP-128 |
| 文件頁(yè)數(shù)： | 135/228頁(yè) |
| 文件大?。?/td> | 1269K |
| 代理商： | LPC47M182-NR |
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SMSC DS – LPC47M192
Page 135
Rev. 03/30/05
DATASHEET
7.18.3.6.1 Sleep Mode
This is a low power mode in which bias currents are ‘on’ but the Hardware Monitor Block is not operating. In this
mode, the A/D converter and monitoring cycle will be turned off. Serial bus communication is still possible with any
register in the Hardware Monitor Block while in this low-power mode.
7.18.3.6.2 Shutdown Mode
This is a low power mode in which bias currents are ‘off’ and the Hardware Monitor Block is not operating. In this
mode, the A/D converter and monitoring cycle will be turned off. Serial bus communication is still possible with any
register in the Hardware Monitor Block while in this low-power mode.
7.18.3.7
The Hardware Monitor Block contains inputs for directly monitoring the power supplies (+12 V, +5 V, +3.3V, +2.5V,
+1.8V, +1.5V, +Vccp and HVCC or HVSB). These inputs are scaled internally to a internal reference source,
converted via a 8 bit successive approximation register ADC or a Delta-Sigma ADC (Analog-to-Digital Converter),
and scaled such that the correct value refers to 3/4 scale or 192 decimal (except the Vccp input). This removes the
need for external resistor dividers and allows for a more accurate means of measurement since the voltages are
referenced to a known value. The 1.5V input does not have an internal resistor divider. Since these inputs are above
Vcc and below Ground, they are not diode protected to the power rails. The measured values are stored in the
Reading registers and compared with the Limit registers. The status bits in the Interrupt Status Register 1 and the
Interrupt Status Register 2 are set if the measured values are outside (or equal to) the programmed limits.
The Vccp voltage input measures the processor voltage, which will lie in the range of 0V to 3.0V.
The following table shows the values of the analog inputs that correspond to the min and max output codes of the
A/D converter. For a complete list of the ADC conversions see Table 78 in Appendix B.
Input Voltage
+12V
IN
+5V
IN
V
CC
/3.3V
IN
Min Value (Corresponds
to A/D output 00000000)
Max Value (Corresponds
to A/D output 11111111)
Analog Voltage Measurement
+2.5V
IN
<0.013
+1.8V
IN
<0.009
+1.5V
IN
<0.008
+V
CCP
<0.012
<0.062
<0.026
<0.017
>15.938
>6.640
>4.383
>3.320
>2.391
>1.992
>2.988
7.18.3.8
VID0-VID4 digital inputs are used to store processor Voltage ID codes (for processor operating voltage) in the VID
and VID4 registers (0x47 and 0x49). These VIDs can be read out by the management system using the SMBus
interface. Bits[3:0] in VID register is used for VID3 to VID0 inputs and Bit[0] of VID4 register is used for VID4 input.
VID4 input is multiplexed with +12V_IN analog input. This pin defaults to the +12V_IN analog input at power up and
bit 0 in VID4 register defaults to 0. This pin can be selected for VID4 by setting bit 5 in the Configuration Register
(0x40).
Voltage ID
7.18.3.9
Temperatures are measured internally by bandgap temperature sensor and externally using two sets of diode sensor
pins (for measuring two external temperatures). See subsections below.
Temperature Measurement
7.18.3.9.1 Internal Temperature Measurement
Internal temperature can be measured by bandgap temperature sensor. The measurement is converted into digital
format by internal ADC. This data is converted in two’s complement format since both negative and positive
temperature can be measured. This value is stored in Ambient Temperature Reading register (0x27). If this value
out-of-limit (or equal to) the programmed limits in Ambient Temperature High Limit register (0x39) and Ambient
Temperature Low Limit register (0x3A), then the corresponding status bits in the Interrupt Status Registers are set.
7.18.3.9.2 External Temperature Measurement
The Hardware Monitor Block also provides a way to measure two external temperatures using diode sensor pins
(Dx+ and Dx-). The value is stored in the Remote Diode Temperature Reading 1 register (0x26) for D0+ and D0-
pins. The value is stored in the Remote Diode Temperature Reading 2 register (0x52) for D1+ and D1- pins. If this
value is out-of-limit (or equal to) the programmed limits (for D0+ and D0- pins, or D1+ and D1- pins) in Remote
相關(guān)PDF資料 |
PDF描述 |
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| LPC47M182-NW | ADVANCED I/O CONTROLLER WITH MOTHERBOARD GLUE LOGIC |
| LPC47M192-NC | LPC SUPER I/O WITH HARDWARE MONITORING BLOCK |
| LPC47M192-NW | LPC SUPER I/O WITH HARDWARE MONITORING BLOCK |
| LPC47S422-MS | ENHANCED SUPER I/O WITH LPC INTERFACE FOR SERVER APPLICATIONS |
| LPC47S422QFP | ENHANCED SUPER I/O WITH LPC INTERFACE FOR SERVER APPLICATIONS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| LPC47M182-NW | 功能描述:輸入/輸出控制器接口集成電路 Enhanced Super I/O Contrllr RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| LPC47M192 | 制造商:SMSC 制造商全稱:SMSC 功能描述:LPC SUPER I/O WITH HARDWARE MONITORING BLOCK |
| LPC47M192-NC | 功能描述:輸入/輸出控制器接口集成電路 Super I/O Contrllr RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| LPC47M192-NW | 功能描述:輸入/輸出控制器接口集成電路 Super I/O Contrllr RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| LPC47M262-NU | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:SMSC 功能描述: |
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