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| 型号： | YELLOWKNIFEX4UM |
| 英文描述： | Yellowknife X4 User＇s Manual |
| 中文描述： | 耶洛奈夫X4用户手册 |
| 文件页数： | 31/39页 |
| 文件大小： | 317K |
| 代理商： | YELLOWKNIFEX4UM |
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Yellowknife X4 User’s Manual
Revision 1.0
Page 37 of 39
6.8
POWER SUPPLY
Yellowknife incorporates a ATX format 250W PC-type power supply capable of supplying sufficient power
at all required voltages to meet the needs of the supported motherboard, drives and add-in cards.
The power supply is switchable externally between 100V/60Hz and 220V/50Hz operations.
6.9
KEY COMPONENTS
The following table summarizes the key components used in the Yellowknife system:
Processor
603, 740 and 750 family
CPU-PCI Bridge
MPC106 (Grackle)
PCI-ISA Bridge
Winbond 83C553
I/O Controller
National Semi PC87308VUL
Enhanced IDE controller
Built in the PCI-ISA bridge
NVRAM (RTC)
Built in PC87308VUL
NVRAM (SRAM)
Sharp LH5168 (8k x 8)
Cache Tag RAMs
Motorola 27t416
6.9.1
MPC106
The MPC106 is a single-chip bridge device providing access between the MPC6xx/MPC7xx processor
and the PCI bus. The MPC106 also integrates a secondary cache controller and a high performance
memory controller that supports EDO and SDRAM. The memory controllers also support EITHER ROM or
Flash ROM. In the Yellowknife Design, up to 128 Mbytes of onboard SDRAM will be supported. The
MPC106's processor interface module handles the processor transactions and performs snoop
operations. This interface also provides the bus arbitration function between processors, one level of
address pipelining, and address and data bus parking. The secondary cache controller supports 256
Kbytes to 1Mbyte of direct-mapped cache in write-through or write-back mode; either mode can be
programmed through an internal configuration register.
6.9.2
Winbond 83C553
The Yellowknife system uses the Winbond 83C553 PCI-ISA controller as a bridge to the ISA bus. This
bridge provides the following functions:
-
100% PCI and ISA compatible
-
Incorporates two 8237 DMA controllers
-
High performance PCI arbiter
-
Incorporates two 8259 interrupt controllers
-
One 82C54 16-bit counter/timer
-
Bus master IDE support for 4 IDE devices
For more information on the Winbond chip, please refer to their user manual.
6.9.3
National Semiconductor PC87308VUL
The PC87308VUL is a single chip super I/O controller. It incorporates in one fully Plug and Play
compatible chip, a Floppy Disk controller, a Keyboard and mouse controller, a Real-time clock, two full
function UARTs, infrared support, a full IEEE 1284 parallel port, three general purpose chip select signals,
and support for power management functions.
PC87308VUL also provide interface to the external SRAMs to provide the NVRAM functions.
相关PDF资料 |
PDF描述 |
|---|---|
| YF-23N | IN-PHASE 4-WAY DIVIDERS/COMBINERS, POWER SMA/TYPE N 0.5-18 GHz |
| YF-25N | IN-PHASE 4-WAY DIVIDERS/COMBINERS, POWER SMA/TYPE N 0.5-18 GHz |
| YF-28N | IN-PHASE 4-WAY DIVIDERS/COMBINERS, POWER SMA/TYPE N 0.5-18 GHz |
| YF-30N | IN-PHASE 4-WAY DIVIDERS/COMBINERS, POWER SMA/TYPE N 0.5-18 GHz |
| YF-38N | IN-PHASE 4-WAY DIVIDERS/COMBINERS, POWER SMA/TYPE N 0.5-18 GHz |
相关代理商/技术参数 |
参数描述 |
|---|---|
| YEP/3 | 制造商:MK Electric 功能描述:BLANK END 40X16MM 制造商:MK (ELECTRIC) 功能描述:BLANK END, 40X16MM |
| YEP/4 | 制造商:MK Electric 功能描述:BLANK END 40X25 ((NS)) |
| YEP0FX13414 | 制造商:Panasonic Industrial Company 功能描述:FACEPLATE |
| YEP0FX1480 | 制造商:Panasonic Industrial Company 功能描述:ASSEMBLY |
| YEP0FX1671S | 制造商:Panasonic Industrial Company 功能描述:ASSEMBLY |
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