參數(shù)資料
型號(hào)： MIC2590B-5BTQ TR
廠商： Micrel Inc
文件頁(yè)數(shù)： 15/23頁(yè)
文件大?。?/td> 230K
描述： IC PCI HOT PLUG CTLR DUAL 48TQFP
標(biāo)準(zhǔn)包裝： 2,000
類型： 熱交換控制器
應(yīng)用： PCI，PCI-X
內(nèi)部開關(guān)： 無(wú)
電源電壓： 3.3V，5V，±12V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 48-TQFP
供應(yīng)商設(shè)備封裝： 48-TQFP（7x7）
包裝： 帶卷 (TR)
其它名稱： MIC2590B-5BTQTR
MIC2590B-5BTQTR-ND
Micrel, Inc.
MIC2590B
 
September 2008 
15
M9999-091808
 
Detailed Register Descriptions below:
 
Conversion Result Register (RESULT), 8-Bits Read Only
D[7]
read-only 
D[6]
read-only 
D[5]
read-only 
D[4]
read-only 
D[3]
read-only 
D[2]
read-only 
D[1]
read-only 
D[0]
read-only 
Voltage or Current Data from ADC
 
Bit
Function
Operation
D[7:0]
Measure data from ADC
Read Only
 
Power-Up Default Value:
Undefined following POR
Read Command Byte:
0000 0000
b
 = 00
h
 
 
(ADC Control Register ADCNTRL), 8-Bits Read/Write
D[7]
read-only 
D[6]
read-only 
D[5]
read-only 
D[4]
read-
write 
D[3]
read-
write 
D[2]
read-
write 
D[1]
read-
write 
D[0]
read-
write 
Busy
Reserved
Reserved 
SEL     PAR
Supply Select
SUP[2:0]
 
Bit(s)
Function
Operation
BUSY
ADC Status
0 = ADC Quiescent
1 = ADC Busy
D[6]
Reserved
Always Read as Zero
D[5]
Reserved
Always Read as Zero
SEL
A/D Slot Select
Specifies Channel for
A/D Conversion
0 = Slot A
1 = Slot B
PAR
Parameter Control Bit
for ADC Conversion
0 = Current
1 = Voltage
SUP[2:0]
Supply Select for ADC
Conversion
000 = No Conversion
001 = 3.3V Supply
010 = 5.0V Supply
011 = +12V Supply
100 = -12V Supply
101 = VAUX Supply
 
Power-Up Default Value:
0000 0000
b
 = 00
h
 
Command Byte (R/W):
0000 0001
b
 = 01
h
 
To operate the ADC the ADCNTRL register must first be
initialized by selecting a slot, specifying whether voltage
or current is to be measured and then specifying the
specific supply that is to be monitored. The software must
then wait 100ms, or poll the BUSY bit until it is zero. The
RESULT register will then contain the valid result of the
conversion.
 
Control Register, Slot A (CNTRLB), 8-Bits Read/Write
D[7]
read-only 
D[6]
read-only 
D[5]
read-only 
D[4]
read-only 
D[3]
read-only 
D[2]
read-only 
D[1]
read-write 
D[0]
read-write 
AUXAPG 
MAINAPG     Reserved     Reserved     Reserved     Reserved 
MAINA 
AUXA 
 
Bit(s)
Function
Operation
AUXAPG     AUX Output Power-
Good Status, Slot A
1 = Power-Good
(VAUXA output is
above its V
UVTH
 
threshold)
MAINAPG     MAIN Output Power-
Good Status, Slot A
1 = Power-Good
(MAINA output is
above its V
UVTH
 
threshold)
D[5]
Reserved
Always Read as Zero
D[4]
Reserved
Always Read as Zero
D[3]
Reserved
Always Read as Zero
D[2]
Reserved
Always Read as Zero
MAINA
MAIN Enable Control,
Slot A
0 = OFF, 1 = ON
VAUXA
VAUX Enable Control,
Slot A
0 = OFF, 1 = ON
 
Power-Up Default Value:
0000 0000
b
 = 00
h
 
Command Byte (R/W):
0000 0010
b
 = 02
h
 
The power-up default value is 00h. Slot A is disabled
upon power-up, i.e., all supply outputs are off.
 
Control Register, Slot B (CNTRLB), 8-Bits Read/Write
D[7]
read-only 
D[6]
read-only 
D[5]
read-only 
D[4]
read-only 
D[3]
read-only 
D[2]
read-only 
D[1]
read-write 
D[0]
read-write 
AUXBPG 
MAINBPG     Reserved     Reserved     Reserved     Reserved 
MAINB 
AUXB 
 
Bit(s)
Function
Operation
AUXBPG     AUX Output Power-
Good Status, Slot B
1 = Power-Good
(VAUXB output is
above its V
UVTH
 
threshold)
MAINBPG     MAIN Output Power-
Good Status, Slot B
1 = Power-Good
(MAINB output is
above its V
UVTH
 
threshold)
D[5]
Reserved
Always Read as Zero
D[4]
Reserved
Always Read as Zero
D[3]
Reserved
Always Read as Zero
D[2]
Reserved
Always Read as Zero
MAINB
MAIN Enable Control,
Slot B
0 = OFF, 1 = ON
VAUXB
VAUX Enable Control,
Slot B
0 = OFF, 1 = ON
 
Power-Up Default Value:
0000 0000
b
 = 00
h
 
Command Byte (R/W):
0000 0011
b
 = 03
h
 
The power-up default value is 00h. Slot B is disabled
upon power-up, i.e., all supply outputs are off.
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