參數(shù)資料
型號(hào)： KSZ8841-PMQL
廠商： Micrel Inc
文件頁(yè)數(shù)： 19/74頁(yè)
文件大?。?/td> 0K
描述： IC MAC CTRLR 32BIT 128-PQFP
應(yīng)用說明： AN-142 Wake-on-LAN and Wake-Up Event
標(biāo)準(zhǔn)包裝： 66
控制器類型： 以太網(wǎng)控制器，MAC
接口： 總線
電源電壓： 3.1 V ~ 3.5 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 128-BFQFP
供應(yīng)商設(shè)備封裝： 128-PQFP（14x20）
包裝： 托盤
產(chǎn)品目錄頁(yè)面： 1080 (CN2011-ZH PDF)
配用： 576-1633-ND - BOARD EVALUATION KSZ8841-PMQL
其它名稱： 576-2117
KSZ8841-PMQL-ND
Micrel, Inc.
KSZ8841-PMQL
October 2007
26
M9999-100407-1.5
The following table shows the RDES1 register bit fields.
Bit
Description
31 - 26
Reserved
25
RER Receive End of Ring
When set, indicates that the descriptor list reached its final descriptor. The KSZ8841-PMQL
returns to the base address of the list, thus creating a descriptor ring.
24 - 12
Reserved
10 - 0
RBS Receive Buffer Size
Indicates the size, in bytes, of the receive data buffer. If the field is 0, the KSZ8841-PMQL
ignores this buffer and moves to the next descriptor.
The buffer size must be a multiple of 4.
The following table shows the RDES2 register bit fields.
Bit
Description
31 - 0
Buffer Address
Indicates the physical memory address of the buffer.
The buffer address must be Word aligned.
The following table shows the RDES3 register bit fields.
Bit
Description
31 - 0
Next Descriptor Address
Indicates the physical memory address of the next descriptor in the descriptor ring.
The buffer address must be Word aligned.
Transmit Descriptors (TDES0-TDES3)
Transmit descriptors must be Word aligned. Each descriptor provides one frame buffer, one byte count field, and
control and status bits.
The following table shows the TDES0 register bit fields.
Bit
Description
31
OWN Own Bit
When set, indicates that the descriptor is owned by the KSZ8841-PMQL. When cleared,
indicates that the descriptor is owned by the host. The KSZ8841-PMQL clears this bit either
when it completes the frame transmission or when the buffer allocated in the descriptor is
empty.
The ownership bit of the first descriptor of the frame should be set after all subsequent
descriptors belonging to the same frame have been set. This avoids a possible race
condition between the KSZ8841-PMQL fetching a descriptor and the driver setting an
ownership bit.
30 - 0
Reserved
The following table shows the TDES1 register bit fields.
Bit
Description
31
IC Interrupt on Completion
When set, the KSZ8841-PMQL sets transmit interrupt after the present frame has been
transmitted. It is valid only when last segment is set.
30
FS First Segment
When set, indicates that the buffer contains the first segment of a frame.
相關(guān)PDF資料
PDF描述
KSZ8842-16MBLI TR IC ETHERNET SW 2PORT 100LFBGA
KSZ8842-32MVLI IC SWITCH ETH 2P 32BIT 128LQFP
KSZ8842-PMBL AM TR IC ETHERNET SW 2PORT 100LFBGA
KSZ8842-PMQLI IC ETHERNET SW 2PORT PCI 128PQFP
KSZ8851-16MLLI TR IC MAC CTLR 1PORT W/BUS 48LQFP
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KSZ8841-PMQL-EVAL 功能描述:以太網(wǎng)開發(fā)工具 KSZ8841-PMQL Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評(píng)估:KSZ8873RLL 接口類型:RMII 工作電源電壓:
KSZ8841-PMQLI 功能描述:以太網(wǎng) IC Single Ethernet Port + 32-bit/33MHz PCI interface, Ind Temp (Lead Free) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
KSZ8842 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:2-Port Ethernet Switch with PCI Interface
KSZ8842-16 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:2-Port Ethernet Switch with Non-PCI Interface
KSZ8842-16_08 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:2-Port Ethernet Switch with Non-PCI Interface
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