MIC2593-2YTQ Micrel Inc, MIC2593-2YTQ Datasheet - Page 20

• Manufacturer Part Number: MIC2593-2YTQ
• Description: IC CTRLR HOTPLUG PCI DUAL 48TQFP
• Manufacturer: Micrel Inc
• Type: Hot-Swap Controllerr

Specifications of MIC2593-2YTQ

• 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: Lead free / RoHS Compliant
• Other names: 576-1100

Common Status Register (CS)
8-Bits, Read/Write
Power-Up Default Value:
Command_Byte Value (R/W):
To reset the OT_INT and UV_INT fault bits, a logical 1 must be written back to these bits.
Micrel, Inc.
September 2008
read/write
Reserved
INTMSK
UV_INT
OV_INT
GPI_B
GPI_A
Bit(s)
D[7]
D[7]
D[6]
D[0]
Reserved
Reserved
General Purpose Input 0, Slot B
General Purpose Input 0, Slot A
Interrupt Mask
Undervoltage Interrupt
Overtemperature Interrupt
Reserved
read/write
Reserved
D[6]
0000 0000
0000 0110
read-only
GPI_B
D[5]
Function
b
b
= 00
= 06
Common Status Register (CS)
h
h
read-only
GPI_A
D[4]
20
read/write
INTMSK
D[3]
0 = Die Temp < 160°C
Always read as zero
Always read as zero
State of GPIB pin
State of GPIA pin
0 = /INT generation is enabled
1 = /INT generation is disabled
The MIC2593 does not participate in the SMBus Alert
Response Address (ARA) protocol.
0 = No UVLO fault
1 = UVLO fault
Set whenever a circuit breaker fault condition occurs as
a result of an undervoltage lockout condition on one of
the main supply inputs. This bit is only set if a UVLO
condition occurs while the ON[A/B] pin is asserted or
the MAIN[A/B] control bits are set.
1 = Fault: Die Temp > 160°C
Set if a fault occurs as a result of theMIC2593’s die
temperature exceeding160°C.
Undefined
read/write
UV_INT
D[2]
Operation
read/write
OV_INT
D[1]
M9999-092208
Reserved
read-only
MIC2593
D[0]