- 您現在的位置：買賣IC網 > PDF目錄67311 > 4450HG/3-K (EXAR CORP) MICROPROCESSOR, PBGA324 PDF資料下載
參數資料
| 型號： | 4450HG/3-K |
| 廠商： | EXAR CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | MICROPROCESSOR, PBGA324 |
| 封裝： | ROHS COMPLIANT, HSBGA-324 |
| 文件頁數： | 57/92頁 |
| 文件大?。?/td> | 780K |
| 代理商： | 4450HG/3-K |
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頁當前第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
4450 – Data Sheet, DS-0131-06
Page 60
Hifn Confidential
RGMII/RTBI signaling on the 4450 supports either 1.5V HSTL or 2.5V LVCMOS for both the
host and network interfaces. The dpu_gpio[2]/RGMII/RTBI voltage Level is used to
select can optionally be used to select between 1.5V HSTL or 2.5V LVCMOS if tied high or
low respectively. The voltage selection applies to both host and network sides assuming
they both use one of the RGMII/RTBI interface options.
Boot Rate Select
The Boot Rate Select function allows the user to boot the 4450 Host 0 interface in either
100Mbps or 1Gbps depending on the level of the esc_gpio[2]/100M/1G Boot signal. If
asserted high following reset, the Host 0 port will attempt to boot from the host at
100Mbps. If asserted low, the Host 0 GMAC will boot at 1Gbps.
RMII MAC/PHY Select
The esc_gpio[3]/RMII MAC/PHY signal following reset is used to configure the RMII
Optional Control interface to boot in either PHY or MAC mode if the signal is asserted high
or low following reset.
PHY Interrupt (Optional)
The PHY Interrupt input may be used with Hifn’s Station Management (STM) software to
connect to PHY Interrupts notifying the STM software that an auto negotiation event has
occurred in the PHY.
DDR2 Configuration
In applications using external DDR2 memory, three gpio pins are used for determining
memory sizing and use of On Die Termination (ODT). The dpu_gpio[4:3] pins
(ddr_config_1 and ddr_config_0) are used to select the DDR2 Memory configurations
per the table below. For memory configurations between 64M and 256M, the a[13]\cke
functions as cke (clock enable). For the 512M Byte configuration, the functionality of pin
a[13]\cke is address pin a[13].
Fiber PHY Control Signals (Optional)
Table 6-23. DDR2 Memory Configuration Sizing
Memory Size
ddr_config_1
ddr_config_0
64 M Bytes
0
128 M Bytes
0
1
256 M Bytes
1
0
512 M Bytes
1
相關PDF資料 |
PDF描述 |
|---|---|
| 4450HA/3-K | MICROPROCESSOR, PBGA324 |
| 45-21/LK2C-B56702C4CB2/2T | SINGLE COLOR LED, COOL WHITE |
| 45-21/LK2C-B38452C4CB2/2T | SINGLE COLOR LED, WARM WHITE |
| 45-21/QK2C-B45562C4CB2/2T | SINGLE COLOR LED, COOL WHITE |
| 45-21/QK2C-B56702C4CB41/2T | SINGLE COLOR LED, COOL WHITE |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 445-0X | 制造商:APEX 功能描述:TOOLS, HEX BITS; Bit Type:Slotted; Hex Bit Size:3F-4R; Length:25mm; Size:1" ;RoHS Compliant: NA |
| 4451 | 功能描述:電纜固定件和配件 PG 7 HYBRID CG .87X.59 .12-.28 RoHS:否 制造商:Heyco 類型:Cable Grips, Liquid Tight 材料:Nylon 顏色:Black 安裝方法:Cable 最大光束直徑:11.4 mm 抗拉強度: |
| 44510 | 功能描述:鉗子和鑷子 ESD Safe Tweezers 7a SA - 120mm RoHS:否 制造商:OK Industries 大小: 類型:Insertion/Extraction Tools And Kit |
| 44-510 | 制造商:RAWLPLUG 功能描述:RAWLBOLT PROJECTING M625P |
| 445100170 | 制造商:OMRON AUTOMATION AND SAFETY 功能描述:SR10 24VAC/DC OR 110/220VAC |
發(fā)布緊急采購，3分鐘左右您將得到回復。