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MIC2593 Datasheet(PDF) 17 Page - STMicroelectronics

Part # MIC2593
Description  Dual-Slot PCI Hot Plug Controller
PDF  26 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

MIC2593 Datasheet(HTML) 17 Page - STMicroelectronics

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April 2004
17
M9999-042204
MIC2593
Micrel
Control Register, Slot B (CNTRLB)
8-Bits, Read/Write
Control Register, Slot B (CNTRLB)
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
read-only
read-only
read only
read only
read-only
read-only
read/write
read/write
AUXBPG
MAINBPG
Reserved
Reserved
Reserved
Reserved
MAINB
VAUXB
Bit(s)
Function
Operation
AUXBPG
AUX output power-good status, Slot B
1 = Power-is-Good
(VAUXB Output is above its UVLO threshold)
MAINBPG
MAIN output power-good status, Slot B
1 = Power-is-Good
(MAINB Outputs are above their UVLO
thresholds)
D[5]
Reserved
Always read as zero
D[4]
Reserved
Always read as zero
D[3]
Reserved
Always read as zero
D[3]
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 = 00h
Command_Byte Value (R/W): 0000 0011
b = 03h
The power-up default value is 00
h. Slot is disabled upon power-up, i.e., all supply outputs are off.



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