MIC2590B-2BTQ TR Micrel Inc, MIC2590B-2BTQ TR Datasheet - Page 15

• Manufacturer Part Number: MIC2590B-2BTQ TR
• Description: IC PCI HOT PLUG CTLR DUAL 48TQFP
• Manufacturer: Micrel Inc
• Type: Hot-Swap Controllerr

Specifications of MIC2590B-2BTQ TR

• Applications: PCI, PCI-X
• Internal Switch(s): No
• Voltage - Supply: 3.3V, 5V, ±12V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-TQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: MIC2590B-2BTQTR; MIC2590B-2BTQTR

read-only
AUXAPG
D[7]
Detailed Register Descriptions below:
Power-Up Default Value:
Read Command Byte:
Power-Up Default Value:
Command Byte (R/W):
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.
read-only
read-only
Busy
D[7]
D[7]
Micrel, Inc.
September 2008
Conversion Result Register (RESULT), 8-Bits Read Only
SUP[2:0]
BUSY
Control Register, Slot A (CNTRLB), 8-Bits Read/Write
D[7:0]
Bit(s)
(ADC Control Register ADCNTRL), 8-Bits Read/Write
PAR
SEL
D[6]
D[5]
Bit
MAINAPG
read-only
Reserved
D[6]
read-only
read-only
D[6]
D[6]
Voltage or Current Data from ADC
ADC Status
Reserved
Reserved
A/D Slot Select
Parameter Control Bit
for ADC Conversion
Supply Select for ADC
Conversion
read-only
Reserved
Measure data from ADC
D[5]
read-only
D[5]
Reserved
read-only
D[5]
Function
Function
Reserved
read-only
D[4]
read-only
D[4]
SEL
D[4]
read-
write
Reserved
read-only
D[3]
read-only
D[3]
Undefined following POR
0000 0000
0000 0000
0000 0001
PAR
D[3]
read-
write
read-only
Reserved
0 = ADC Quiescent
1 = ADC Busy
Always Read as Zero
Always Read as Zero
Specifies Channel for
A/D Conversion
0 = Slot A
1 = Slot B
0 = Current
1 = Voltage
000 = No Conversion
001 = 3.3V Supply
010 = 5.0V Supply
011 = +12V Supply
100 = -12V Supply
101 = VAUX Supply
D[2]
read-only
D[2]
D[2]
read-
write
b
b
b
Supply Select
Operation
= 00
= 00
= 01
Operation
Read Only
SUP[2:0]
read-write
read-only
D[1]
MAINA
D[1]
D[1]
read-
write
h
h
h
read-only
read-write
D[0]
D[0]
D[0]
read-
write
AUXA
15
read-only
AUXBPG
D[7]
Power-Up Default Value:
Command Byte (R/W):
The power-up default value is 00h. Slot A is disabled
upon power-up, i.e., all supply outputs are off.
Power-Up Default Value:
Command Byte (R/W):
The power-up default value is 00h. Slot B is disabled
upon power-up, i.e., all supply outputs are off.
MAINAPG
MAINBPG
AUXAPG
AUXBPG
VAUXA
VAUXB
MAINA
MAINB
Control Register, Slot B (CNTRLB), 8-Bits Read/Write
Bit(s)
Bit(s)
D[5]
D[4]
D[3]
D[2]
D[5]
D[4]
D[3]
D[2]
MAINBPG
read-only
D[6]
AUX Output Power-
Good Status, Slot A
MAIN Output Power-
Good Status, Slot A
Reserved
Reserved
Reserved
Reserved
MAIN Enable Control,
Slot A
VAUX Enable Control,
Slot A
AUX Output Power-
Good Status, Slot B
MAIN Output Power-
Good Status, Slot B
Reserved
Reserved
Reserved
Reserved
MAIN Enable Control,
Slot B
VAUX Enable Control,
Slot B
read-only
Reserved
D[5]
Function
Function
read-only
Reserved
D[4]
Reserved
read-only
D[3]
0000 0000
0000 0010
0000 0000
0000 0011
read-only
Reserved
1 = Power-Good
(VAUXA output is
above its V
threshold)
1 = Power-Good
(MAINA output is
above its V
threshold)
Always Read as Zero
Always Read as Zero
Always Read as Zero
Always Read as Zero
0 = OFF, 1 = ON
0 = OFF, 1 = ON
1 = Power-Good
(VAUXB output is
above its V
threshold)
1 = Power-Good
(MAINB output is
above its V
threshold)
Always Read as Zero
Always Read as Zero
Always Read as Zero
Always Read as Zero
0 = OFF, 1 = ON
0 = OFF, 1 = ON
D[2]
b
b
b
b
Operation
Operation
M9999-091808
= 00
= 02
= 00
= 03
read-write
D[1]
MIC2590B
MAINB
h
h
h
h
UVTH
UVTH
UVTH
UVTH
read-write
D[0]
AUXB