- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄295917 > EWIXP455ABT (INTEL CORP) 266 MHz, RISC PROCESSOR, PBGA544 PDF資料下載
參數(shù)資料
| 型號： | EWIXP455ABT |
| 廠商： | INTEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 266 MHz, RISC PROCESSOR, PBGA544 |
| 封裝： | LEAD FREE, PLASTIC, BGA-544 |
| 文件頁數(shù)： | 139/163頁 |
| 文件大小： | 1123K |
| 代理商： | EWIXP455ABT |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁第135頁第136頁第137頁第138頁當(dāng)前第139頁第140頁第141頁第142頁第143頁第144頁第145頁第146頁第147頁第148頁第149頁第150頁第151頁第152頁第153頁第154頁第155頁第156頁第157頁第158頁第159頁第160頁第161頁第162頁第163頁
Package Information
May 2005
Intel IXP45X and Intel IXP46X Product Line of Network Processors Datasheet
77
Document Number: 306261-002
EX_CS_N[7:0]
H
VB
I/O
Used to drive chip selects for outbound transactions for the expansion bus.
Chip selects 0 through 7 can be configured to support Intel/Intel Synchronous/Motorola/ZBT
SRAM bus cycles.
Chip selects 4 through 7 can be configured to support TI HPI bus cycles.
These signal are also sampled by the arbiter to determine when to arbitrate. Driving the signals
from an external interface has no effect on the operation of anything but the arbiter.
External board pull-ups are required on EX_CS_N to ensure this signal remains deasserted
(especially in a multi-master environment). Additionally, the system designer is responsible for
ensuring that all the tri-stated signals do not become indeterminate. If they become
indeterminate, excessive power consumption will occur in the PAD input buffers.
EX_DATA[31:0]
H
VB
I/O
Expansion bus, bidirectional data
EX_BE_N[3:0]
H
VB
I/O
Expansion bus Byte enables. EX_BE_N is used to select the particular bytes that will be written or
read when executing outbound transfers.
When executing inbound transfers, EX_BE_N will be used to select sub-word writes. Only 32 bit
reads of the expansion bus is supported when operating on inbound transfers.
EX_BE_N is driven by the IXP45X/IXP46X network processors unless grant is asserted to an
external master.
EX_IOWAIT_N
Z
VI
I
Data ready/acknowledge from expansion bus devices. Expansion bus access is halted when an
external device sets EX_IOWAIT_N to logic 0 and resume from the halted location once the external
device sets EX_IOWAIT_N to logic 1. This signal affects accesses that use EX_CS_N[7:0] when the
chip select is configured in Intel and Motorola modes of operation.
During idle cycles, the board is responsible for ensuring that EX_IOWAIT_N is pulled-up.
Additionally, EX_IOWAIT_N must always be pulled high during Micron ZBT, Intel Synchronous
Mode, and HPI cycles
Should be pulled high through a 10-K
resistor when not being utilized in the system.
EX_RDY_N[3:0]
Z
VI
I
HPI interface ready signals. Can be configured to be active high or active low. These signals are
used to halt accesses using Chip Selects 7 through 4 when the chip selects are configured to
operate in HPI mode. There is one RDY signal per chip select. This signal only affects accesses that
use EX_CS_N[7:4].
Should be pulled high through a 10-K
resistor when not being utilized in the system.
Table 17.
Expansion Bus Interface (Sheet 2 of 4)
Name
Power
on
Reset
Normal
After
Reset
Until
Software
Enables
Normal
After
Software
Enables
Type
Description
NOTE:
This table discusses all features supported on the Intel IXP45X and Intel IXP46X Product Line of Network Processors. For details on feature support listed by
processor, see Table 1 on page 14.
For a legend of the Type codes, see Table 10 on page 46.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| EX5-R-PL | 16 CONTACT(S), MALE, COMBINATION LINE CONNECTOR, SOLDER |
| EXH2E106HR | PLASTIC FILM CAPACITORS |
| EXH2E205HR | PLASTIC FILM CAPACITORS |
| EXH2E255HR | PLASTIC FILM CAPACITORS |
| EXH2E305HR | PLASTIC FILM CAPACITORS |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| EWIXP455BAC | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| EWIXP460BAD | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Intel 功能描述: |
| EWJKXA066A15 | 制造商:Panasonic Industrial Company 功能描述:CONTROL |
| EWK105BJ224MP-F | 制造商:TAIYO YUDEN 功能描述:Cut Tape 制造商:Taiyo Yuden 功能描述:Ceramic capacitor LWDC 0402 220nF 制造商:Taiyo Yuden 功能描述:Cap Ceramic 0.22uF 16V X5R 20% SMD 0204 85 制造商:Taiyo Yuden 功能描述:Cap Ceramic 0.22uF 16V X5R 20% SMD 0204 85°C Paper T/R |
| EWK105BJ224MPHF | 功能描述:CAP CER 0.22UF 16V X5R 0204 制造商:taiyo yuden 系列:LWDC?，LW 包裝:剪切帶（CT） 零件狀態(tài):在售 電容:0.22μF 容差:±20% 電壓 - 額定:16V 溫度系數(shù):X5R 工作溫度:-55°C ~ 85°C 特性:低 ESL 型（倒置結(jié)構(gòu)） 等級:AEC-Q200 應(yīng)用:汽車，旁通，去耦 故障率:- 安裝類型:表面貼裝，MLCC 封裝/外殼:0204（0610 公制） 大小/尺寸:0.020" 長 x 0.039" 寬（0.52mm x 1.00mm） 高度 - 安裝（最大值）:- 厚度（最大值）:0.014"（0.35mm） 引線間距:- 引線形式:- 標(biāo)準(zhǔn)包裝:1 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。