PI7C9X20404SLCFDE Pericom Semiconductor, PI7C9X20404SLCFDE Datasheet - Page 42

• Manufacturer Part Number: PI7C9X20404SLCFDE
• Description: IC PCIE PACKET SWITCH 128LQFP
• Manufacturer: Pericom Semiconductor
• Series: SlimLine™r

Specifications of PI7C9X20404SLCFDE

• Applications: Data Transport
• Interface: Advanced Configuration Power Interface (ACPI)
• Package / Case: 128-LQFP
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -

7.2.36
7.2.37
7.2.38
7.2.39
7.2.40
7.2.41
July 2009 – Revision 1.2
Pericom Semiconductor
NEXT ITEM POINTER REGISTER – OFFSET 8Ch (Downstream Port Only)
MESSAGE CONTROL REGISTER – OFFSET 8Ch (Downstream Port Only)
MESSAGE ADDRESS REGISTER – OFFSET 90h (Downstream Port Only)
MESSAGE UPPER ADDRESS REGISTER – OFFSET 94h (Downstream
Port Only)
MESSAGE DATA REGISTER – OFFSET 98h (Downstream Port Only)
VPD CAPABILITY ID REGISTER – OFFSET 9Ch (Upstream Port Only)
BIT
15:8
BIT
16
19:17
22:20
23
31:24
BIT
1:0
31:2
BIT
31:0
BIT
15:0
FUNCTION
Next Item Pointer
FUNCTION
MSI Enable
Multiple Message
Capable
Multiple Message
Enable
64-bit address
capable
Reserved
FUNCTION
Reserved
Message Address
FUNCTION
Message Upper
Address
FUNCTION
Message Data
RO
RW
TYPE
TYPE
TYPE
TYPE
TYPE
RW
RW
RW
RW
RO
RO
RO
RO
Page 42 of 77
DESCRIPTION
Pointer points to the Vendor specific capability register (A4h).
Reset to A4h.
DESCRIPTION
0b: The function is prohibited from using MSI to request service
1b: The function is permitted to use MSI to request service and is prohibited
Reset to 0b.
Read as 000b.
Reset to 000b.
0b: The function is not capable of generating a 64-bit message address
1b: The function is capable of generating a 64-bit message address
Reset to 1b.
Reset to 00h.
DESCRIPTION
Reset to 00b.
If the message enable bit is set, the contents of this register specify the
DWORD aligned address for MSI memory write transaction.
Reset to 0.
DESCRIPTION
This register is only effective if the device supports a 64-bit message address
is set.
Reset to 00000000h.
DESCRIPTION
Reset to 0000h.
from using its INTx # pin
4Port-4Lane PCI Express® Switch
SlimLine
PI7C9X20404SL
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