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PCI9054 参数 Datasheet PDF下载

PCI9054图片预览
型号: PCI9054
PDF下载: 下载PDF文件 查看货源
内容描述: PCI总线主控I / O加速器芯片 [PCI Bus Master I/O Accelerator Chip]
分类和应用: PC
文件页数/大小: 4 页 / 387 K
品牌: PLX [ PLX TECHNOLOGY ]
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PCI Initiator  
Type 0 and Type 1 configuration cycles  
850/860 processor. The PCI 9054’s flexi-  
ble, 3.3V, 5V tolerant I/O buffers com-  
bined with a local bus operation up to  
50MHz is ideally suited for current and  
future PowerQUICC processors. The  
PCI 9054 also provides support for the  
MPC860 IDMA channel for movement of  
data between internal MPC860 I/O and  
the PCI bus. In addition, the PCI9054  
also makes use of the advanced Data  
Pipe Architecture including unlimited  
burst capability as shown in figure 1.  
PCI 9054 I/O Accelerator  
The PCI 9054, a 32-bit 33MHz Bus  
Master I/O Accelerator, is the most  
advanced general purpose bus master  
device available. It offers a robust PCI v2.2  
specification implementation enabling  
burst transfers up to 132Mbytes/second.  
The PCI 9054 incorporates PLX’s industry  
leading Data Pipe ArchitectureTM including  
DMA engines, programmable PCI  
All PCI Memory and I/O cycles supported  
Initiator READ prefetching  
Burst length control—programmable  
threshold pointer  
Unaligned transfer control  
Endian swapping  
PCI Target  
Multiple independent address spaces  
Initiator and Target data transfer modes  
and PCI messaging functions.  
Dynamic local bus width control  
Target READ prefetching  
1
For PowerQUICC IDMA operation,  
Data Pipe Architecture™  
the PCI 9054 transfers data to PCI  
under the control of the IDMA hand-  
shake protocol.  
Endian swapping  
Local bus priority control  
Dual DMA Channels  
Latency timer  
Dual independent channels—provides  
2
At the same time, the PCI 9054 Data  
flexible prioritization scheme  
PCI Messaging  
Pipe Architecture™ DMA can be oper-  
ated bi-directionally, with the PCI 9054  
as the master for both buses, to manage  
transfers of data from the local bus  
to the PCI bus or from the PCI bus to  
the local bus. This is a prime example  
of how the PCI 9054 provides superior  
general purpose bus master perfor-  
mance and gives the designer using the  
PowerQUICC processor greater flexibility  
in implementing multiple simultaneous  
I/O transfers. The PCI9054 has unlimit-  
ed bursting capability which enhances  
any MPC860 PowerQUICC design.  
Direct H/W control of DMA  
Complete messaging unit with mailbox  
-Demand mode DMA operation  
-Block Mode or Scatter/Gather operation  
-End of Transfer (EOT) signal  
registers, doorbell registers  
Queue management pointers which can  
be used for message passing under the  
I O protocol or a custom protocol.  
2
Programmable burst length including  
PCI 9054 PCI Applications  
unlimited burst  
High performance Motorola MPC  
850/860 PowerQUICC Designs  
A key application for the PCI 9054 is  
Motorola MPC 850/860 based adapters  
for telecom and networking applications.  
Shuttle mode DMA channel support  
Automatic invalidation of used  
DMA descriptors  
Unaligned transfer support  
2
High Performance CompactPCI  
1
PowerQUICC  
MPC860  
Adapter Designs  
MEM  
Another key application for the PCI 9054  
is CompactPCI adapters for telecom and  
networking applications. These applica-  
tions include high performance commu-  
nications like WAN/LAN controller cards,  
high speed modem cards, frame relay  
cards, and telephony cards for telecom  
switches and remote access systems.  
The PCI 9054 has intergrated key  
IDMA  
2
Local Bus  
PCI 9054  
I/O Accelerator  
DMA 0  
DMA 1  
ROM  
Figure 1.  
features to enable live-insertion of Hot  
Swap CompactPCI adapters. The PCI  
9054 PICMG2.1 compatible Hot Swap  
Friendly PCI interface includes both Hot  
Swap Capable and Friendly features:  
High Performance MPC860  
PowerQUICC Adapter Design  
PCI Bus  
Supports PCIbus mastering from local  
slave-only devices  
These applications include high perfor-  
mance communications like WAN/LAN  
controller cards, high speed modem cards,  
frame relay cards, and networking cards  
for routers and switches to name a few.  
The PCI 9054 simplifies designs by pro-  
viding an industry leading enhanced  
direct-connect interface to the MPC  
Scatter/Gather list management  
Hot Swap Capable  
-Descriptors can be in the PCI or local  
bus memory  
PCI specification v2.1 or better  
Tolerant of V from early power  
cc  
-Allows independent scatter/gather  
ring management  
Tolerant of asynchronous reset  
Tolerant of precharge voltage  
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