參數(shù)資料
型號(hào): LR4500
廠商: LSI Corporation
英文描述: Superscalar Microprocessor(超標(biāo)量微處理器)
中文描述: 超標(biāo)量微處理器(超標(biāo)量微處理器)
文件頁數(shù): 76/172頁
文件大?。?/td> 1142K
代理商: LR4500
5-6
Bus Interface Descriptions
Figure 5.3 Lbus Interface
Inputs and outputs on the Lbus are referenced to the LR4500. Since
either the LR4500 or an Lbus device can be bus master, some signals
that are typically unidirectional, such as the read signal LRDn, are
bidirectional on the Lbus. When the LR4500 is bus master and asserts
LRDn, it enables a read operation in one of the Lbus devices. When an
Lbus device is bus master, it can assert LRDn to read data from the
DRAM.
LAp[31:2]
Lbus Address Bus
When the LR4500 is master of the Lbus, it outputs the
address that is used to access one of the devices on the
Lbus. If one of the devices on the Lbus is bus master, it
outputs to the LR4500 the address used to access the
DRAM.
Bidirectional
Lbus
Devices
SCbus
Strap LOW
LCHALFn
LCLKp
LAp[31:2]
LDp[31:0]
LBEn[3:0]
LRDn
LADSn
LRDYn
LRTYn
LHoLDp
LHLDAp
Lbus
LR4500
Reference
Device
DRAM Controller
CW4011
Shell
SCbus/Lbus
Converter
Mbus
LCRESETn
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LR4-550 功能描述:可復(fù)位保險(xiǎn)絲 5.5A 20V 100A Imax RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C
LR4-550F 功能描述:可復(fù)位保險(xiǎn)絲 5.5A 20V 100A Imax RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C
LR4-550R 功能描述:可復(fù)位保險(xiǎn)絲 RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C
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LR4-550RAF 功能描述:可復(fù)位保險(xiǎn)絲 5.5A STRAP Polyswitch PTC RESET RoHS:否 制造商:Bourns 電流額定值: 電阻:7.5 Ohms 最大直流電壓: 保持電流:0.1 A 安裝風(fēng)格:SMD/SMT 端接類型:SMD/SMT 跳閘電流:0.6 A 引線間隔: 系列:MF-PSHT 工作溫度范圍:- 40 C to + 125 C