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參數(shù)資料
| 型號： | TNETA1561 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | ATM Segmentation and Reassembly Device with PCI Host Interface(ATM 分段和重設(shè)裝置帶SBUS主機接口) |
| 中文描述： | 自動柜員機分段和重組的PCI主機接口（自動柜員機分段和重設(shè)裝置帶SBU的主機接口設(shè)備） |
| 文件頁數(shù)： | 17/49頁 |
| 文件大?。?/td> | 976K |
| 代理商： | TNETA1561 |
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TNETA1561
ATM SEGMENTATION AND REASSEMBLY DEVICE
WITH PCI HOST INTERFACE
SDNS028B – OCTOBER 1994 – REVISED JANUARY 1996
17
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
Operation
Data Structure
Registers
23
28
39
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Table of Contents
Functional Overview
Functional Description
Interfaces
17
18
21
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functional overview (see Figure 11)
The TNETA1561 (PCI SAR) implements the PCI-bus protocols for connecting a peripheral device to a PCI-bus
host system (mapped in memory space) and is designed for the PCI plug-in card concept. The central-resource
functions, such as PCI-bus arbitration, are implemented by the host processor using the PCI SAR adapter.
The PCI SAR provides the PCI-configuration space to support its configuration and initialization. This
configuration space specifies data for initialization software and error-handling software. The PCI SAR supports
the mechanism to implement an external-EPROM interface for device-specific initialization and other booting
mechanisms.
The PCI bus uses bursts as the basic mechanism to transfer data. The TNETA1561 supports data-burst sizes
up to 52 bytes for a PCI-bus access requiring a total of 13 data-phase transfers. A 13-word data transfer occurs
when the payload data is not 32 bit aligned. The typical latency for PCI-bus access is 2
μ
s, but this PCI SAR
provides adequate data buffering for a worst-case latency of up to 30
μ
s.
Host
CPU
Memory
Master
Arbiter
Bus
Bridge
PCI
Bus
32
TNETA1561
(PCI SAR)
EPROM
Physical
Layer
Media
8
Local Bus
Control
Memory
32
Control-Bus
Memory
TX UTOPIA
RX UTOPIA
Figure 11. TNETA1561 Architecture
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相關(guān)代理商/技術(shù)參數(shù) |
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| TNETA1561PGC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TNETA1570 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:ATM SEGMENTATION AND REASSEMBLY DEVICE WITH INTEGRATED 64-BIT PCI-HOST INTERFACE |
| TNETA1570MFP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ATM/SONET Segmentation and Reassembly Circuit |
| TNETA1570PGW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TNETA1575 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:ATM SEGMENTATION AND REASSEMBLY DEVICE WITH PCI-HOST AND COPROCESSOR INTERFACES |
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