参数资料
| 型号： | PI7C9X20404GPBNBE |
| 厂商： | Pericom |
| 文件页数： | 39/79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 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页当前第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页
PI7C9X20404GP
4Port-4Lane PCI Express Switch
GreenPacket
TM Family
Datasheet
Page 44 of 79
June 2009 – Revision 1.6
Pericom Semiconductor
BIT
FUNCTION
TYPE
DESCRIPTION
30
Enable User ACK
Latency
RW
When asserted, the user-defined ACK latency value is be employed. The
default value may be changed by SMBus or auto-loading from EEPROM.
Reset to 0b.
31
Reserved
RO
Reset to 0b.
7.2.52
SWITCH OPERATION MODE – OFFSET B4h (Upstream Port)
BIT
FUNCTION
TYPE
DESCRIPTION
0
Store-Forward
RW
When set, a store-forward mode is used. Otherwise, the chip is working under
cut-through mode. The default value may be changed by SMBus or auto-
loading from EEPROM.
Reset to 0b.
2:1
Cut-through
Threshold
RW
Cut-through Threshold. When forwarding a packet from low-speed port to
high-speed mode, the chip provides the capability to adjust the forwarding
threshold. The default value may be changed by SMBus or auto-loading from
EEPROM.
00b: the threshold is set at the middle of forwarding packet
01b: the threshold is set ahead 1-cycle of middle point
10b: the threshold is set ahead 2-cycle of middle point.
11b: the threshold is set ahead 3-cycle of middle point.
Reset to 01b.
3
Port Arbitration
Mode
RW
When set, the round-robin arbitration will stay in the arbitrated port even if
the credit is not enough but request is pending.
When clear, the round-robin arbitration will always go to the requesting port,
which the outgoing credit is enough for the packet queued in the port.
The default value may be changed by SMBus or auto-loading from
EEPROM.
Reset to 0b.
4
Credit Update Mode
RW
When set, the frequency of releasing new credit to the link partner will be one
credit per update.
When clear, the frequency of releasing new credit to the link partner will be
two credits per update.
The default value may be changed by SMBus or auto-loading from
EEPROM.
Reset to 0b.
5
Ordering on
Different Egress Port
Mode
RW
When set, there has ordering rule on packets for different egress port. The
default value may be changed by SMBus or auto-loading from EEPROM.
Reset to 0b.
6
Ordering on
Different Tag of
Completion Mode
RW
When set, there has ordering rule between completion packet with different
tag. The default value may be changed by SMBus or auto-loading from
EEPROM.
Reset to 0b.
7
Reserved
RO
Reset to 0.
13:8
Power management
Control parameter
RW
The default value may be changed by SMBus or auto-loading from
EEPROM.
Reset to 000001b.
14
RX Polarity
Inversion Disable
RO
The default value may be changed by SMBus or auto-loading from
EEPROM.
Reset to 0b.
相关PDF资料 |
PDF描述 |
|---|---|
| PI7C9X20404SLCFDE | IC PCIE PACKET SWITCH 128LQFP |
| PI7C9X20505GPBNDE | IC PCIE PACKET SWITCH 256BGA |
| PI7C9X20508GPBNDE | IC PCIE PACKET SWITCH 256BGA |
| PI7C9X440SLBFDE | IC PCIE-TO-USB 2.0 CTRLR 128LQFP |
| PI7C9X442SLBFDE | IC PCIE-TO-USB2.0 SWIDGE 128LQFP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PI7C9X20404SLCEVB | 制造商:Pericom Semiconductor Corporation 功能描述:PCIE 4 PORT SWITCH EVAL BOARD - Boxed Product (Development Kits) |
| PI7C9X20404SLCFDE | 功能描述:外围驱动器与原件 - PCI 4port 4lane PCIe Packet Switch RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| PI7C9X20404SLCFDEX | 功能描述:外围驱动器与原件 - PCI 4port 4lane PCIe Packet Switch RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| PI7C9X20505GPBNDE | 功能描述:外围驱动器与原件 - PCI 5port 5lane PCIe PacketSwitch RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| PI7C9X20508GPANDE | 制造商:Pericom Semiconductor Corporation 功能描述:5-PORT, 8-LANE, GREENPACKET- PCIE PACKET SWITCH - Rail/Tube |
发布紧急采购，3分钟左右您将得到回复。