参数资料
型号: PI7C9X20404GPBNBE
厂商: Pericom
文件页数: 63/79页
文件大小: 0K
描述: IC PCIE PACKET SWITCH 148LFBGA
产品变化通告: Product Discontinuation Notice 22/Jan/2010
标准包装: 189
系列: GreenPacket™
应用: 封装开关,4 端口/4 线道
接口: PCI Express
封装/外壳: 148-LFBGA
供应商设备封装: 148-LFBGA(12x12)
包装: 托盘
安装类型: 表面贴装
PI7C9X20404GP
4Port-4Lane PCI Express Switch
GreenPacket
TM Family
Datasheet
Page 66 of 79
June 2009 – Revision 1.6
Pericom Semiconductor
7.2.100
CAPABILITY VERSION – OFFSET 20Ch
BIT
FUNCTION
TYPE
DESCRIPTION
19:16
Capability Version
RO
Read as 1h. Indicates PCIe Base Specification REV. 1.0a.
Reset to 1h.
7.2.101
NEXT ITEM POINTER REGISTER – OFFSET 20Ch
BIT
FUNCTION
TYPE
DESCRIPTION
31:20
Next Capability
Offset
RO
Read as 000h. No other ECP registers.
Reset to 000h.
7.2.102
DATA SELECT REGISTER – OFFSET 210h
BIT
FUNCTION
TYPE
DESCRIPTION
7:0
Data Selection
RW
It indexes the power budgeting data reported through the data register.
When 00h, it selects D0 Max power budget
When 01h, it selects D0 Sustained power budget
Other values would return zero power budgets, which means not supported
Reset to 00h.
31:8
Reserved
RO
Reset to 000000h.
7.2.103
POWER BUDGETING DATA REGISTER – OFFSET 214h
BIT
FUNCTION
TYPE
DESCRIPTION
7:0
Base Power
RO
It specifies the base power value in watts. This value represents the required
power budget in the given operation condition. The default value may be
changed by auto-loading from EEPROM. The default value may be changed
by auto-loading from EEPROM.
Reset to 04h.
9:8
Data Scale
RO
It specifies the scale to apply to the base power value. The default value may
be changed by auto-loading from EEPROM.
Reset to 00b.
12:10
PM Sub State
RO
It specifies the power management sub state of the given operation condition.
It is initialized to the default sub state.
Reset to 000b.
14:13
PM State
RO
It specifies the power management state of the given operation condition.
It defaults to the D0 power state. The default value may be changed by auto-
loading from EEPROM.
Reset to 00b.
17:15
Type
RO
It specifies the type of the given operation condition.
It defaults to the Maximum power state. The default value may be changed by
auto-loading from EEPROM.
Reset to 111b.
20:18
Power Rail
RO
It specifies the power rail of the given operation condition.
Reset to 010b.
31:21
Reserved
RO
Reset to 0.
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