PI7C9X20404GPBNBE Pericom Semiconductor, PI7C9X20404GPBNBE Datasheet - Page 64

• Manufacturer Part Number: PI7C9X20404GPBNBE
• Description: IC PCIE PACKET SWITCH 148LFBGA
• Manufacturer: Pericom Semiconductor
• Series: GreenPacket™r

Specifications of PI7C9X20404GPBNBE

• Applications: Data Transport
• Interface: Advanced Configuration Power Interface (ACPI)
• Package / Case: 148-LFBGA
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Voltage - Supply: -

7.2.95
7.2.96
7.2.97
June 2009 – Revision 1.6
Pericom Semiconductor
VC RESOURCE CONTROL REGISTER (1) – OFFSET 160h
VC RESOURCE STATUS REGISTER (1) – OFFSET 164h
VC ARBITRATION TABLE REGISTER – OFFSET 170h
BIT
31:24
BIT
7:0
15:8
16
19:17
23:20
26:24
30:27
31
BIT
15:0
16
17
31:18
FUNCTION
TC/VC Map
Reserved
Load Port
Arbitration Table
Port Arbitration
Select
Reserved
VC ID
Reserved
VC Enable
FUNCTION
Port Arbitration
Table Offset
FUNCTION
Reserved
Port Arbitration
Table Status
VC Negotiation
Pending
Reserved
(Exception
TYPE
TYPE
for bit0)
TYPE
RO
RO
RO
RO
RO
RW
RW
RW
RW
RW
RO
RO
RO
Page 64 of 79
DESCRIPTION
It indicates the location of the Port Arbitration Table (n) as an offset from the
base address of the Virtual Channel Capability register in the unit of DQWD
(16 bytes).
Reset to 08h for Port Arbitration Table (1)
DESCRIPTION
Reset to 0000h.
When set, it indicates that any entry of the Port Arbitration Table is written by
software. This bit is cleared when hardware finishes loading values stored in
the Port Arbitration Table after the bit of “Load Port Arbitration Table” is set.
Reset to 0b.
When set, it indicates that the VC resource is still in the process of
negotiation. This bit is cleared after the VC negotiation is complete.
Reset to 0b.
Reset to 0.
DESCRIPTION
This field indicates the TCs that are mapped to the VC resource. Bit
locations within this field correspond to TC values. When the bits in this
field are set, it means that the corresponding TCs are mapped to the VC
resource. Bit 0 of this filed is read-only and must be set to “0” for the VC1.
The default value may be changed by SMBus or auto-loading from
EEPROM.
Reset to 00h.
Reset to 00h.
When set, the programmed Port Arbitration Table is applied to the
hardware. This bit always returns 0b when read.
Reset to 0b.
This field is used to configure the Port Arbitration by selecting one of the
supported Port Arbitration schemes. The permissible values for the
schemes supported by Switch are 000b, 011b and 100b at VC1, other value
than these written into this register will be treated as default.
Reset to 000b.
Reset to 0h.
This field assigns a VC ID to the VC resource.
Reset to 001b.
Reset to 0h.
0b: it disables this Virtual Channel
1b: it enables this Virtual Channel
Reset to 0b.
4Port-4Lane PCI Express Switch
GreenPacket
PI7C9X20404GP
Datasheet
TM
Family