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| 型号： | KSZ8842-PMBL AM |
| 厂商： | Micrel Inc |
| 文件页数： | 63/119页 |
| 文件大小： | 0K |
| 描述： | IC ETHERNET SW 2PORT 100-LFBGA |
| 标准包装： | 260 |
| 控制器类型： | 以太网开关控制器 |
| 接口： | PCI |
| 电源电压： | 3.1 V ~ 3.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 100-LFBGA |
| 供应商设备封装： | 100-LFBGA |
| 包装： | 托盘 |
| 产品目录页面： | 1081 (CN2011-ZH PDF) |
| 配用： | 576-1636-ND - BOARD EVALUATION KSZ8842-PMQL |
| 其它名称： | 576-3348 |
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Micrel, Inc.
KSZ8842-PMQL/PMBL
October 2007
48
M9999-100207-1.5
Bit
Default
R/W
Description
25
0
RW
DMRPSIE DMA MAC Receive Process Stopped Interrupt Enable
When this bit is set, the DMA MAC Receive Process Stopped Interrupt is
enabled.
When this bit is reset, the DMA MAC Receive Process Stopped Interrupt
is disabled.
24 – 0
–
RO
Reserved
Interrupt Status Register (INTST Offset 0x002C)
This register contains the status bits for the CPU. When the corresponding bit is set, the CPU is interrupted. The driver
usually reads this register during interrupt service routine or polling. The register bits are not cleared when read. Each
field can be masked.
The following table shows the register bit fields.
Bit
Default
R/W
Description
31
0
RW
DMLCS DMA MAC Link Changed Status
When this bit is set, it indicates that the DMA MAC link status has
changed from link up to link down or from link down to link up.
This edge-triggered interrupt status is cleared by writing 1 to this bit.
30
0
RW
DMTS DMA MAC Transmit Status
When this bit is set, it indicates that the DMA MAC has transmitted at
least a frame on the DMA port and the MAC is ready for new frames from
the host.
This edge-triggered interrupt status is cleared by writing 1 to this bit.
29
0
RW
DMRS DMA MAC Receive Status
When this bit is set, it indicates that the DMA MAC has received a frame
from the DMA port and it is ready for the host to process
This edge-triggered interrupt status is cleared by writing 1 to this bit.
28
0
RW
DMTBUS DMA MAC Transmit Buffer Unavailable Status
When this bit is set, it indicates that the next descriptor on the transmit list
is owned by the host and cannot be acquired by the KSZ8842-
PMQL/PMBL. The transmission process is suspended. To resume
processing transmit descriptors, the host should change the ownership bit
of the descriptor and then issue a transmit start command.
This edge-triggered interrupt status is cleared by writing 1 to this bit.
27
0
RW
DMRBUS DMA MAC Receive Buffer Unavailable Status
When this bit is set, it indicates that the descriptor list is owned by the host
and cannot be acquired by the KSZ8842-PMQL/PMBL. The receiving
process is suspended. To resume processing receive descriptors, the
host should change the ownership of the descriptor and may issue a
receive start command. If no receive start command is issued, the
receiving process resumes when the next recognized incoming frame is
received. After the first assertion, this bit is not asserted for any
subsequent not owned receive descriptors fetches. This bit is asserted
only when the previous receive descriptor was owned by the KSZ8842-
PMQL/PMBL.
This edge-triggered interrupt status is cleared by writing 1 to this bit.
26
0
RW
DMTPSS DMA MAC Transmit Process Stopped Status
Asserted when the DMA MAC transmit process enters the stopped state.
This edge-triggered interrupt status is cleared by writing 1 to this bit.
25
0
RW
DMRPSS DMA MAC Receive Process Stopped Status
Asserted when the DMA MAC receive process enters the stopped state.
This edge-triggered interrupt status is cleared by writing 1 to this bit.
24 – 0
–
RO
Reserved
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相关代理商/技术参数 |
参数描述 |
|---|---|
| KSZ8842-PMBL-EVAL | 功能描述:以太网开发工具 2+1 Port 10/100 Ethernet Switch with 32b/33MHz PCI Interface (BGA Version) Eval Board RoHS:否 制造商:Micrel 产品:Evaluation Boards 类型:Ethernet Transceivers 工具用于评估:KSZ8873RLL 接口类型:RMII 工作电源电压: |
| KSZ8842-PMBL-TR | 功能描述:Ethernet Switch 10/100 Base-T/TX PHY PCI Interface 100-LFBGA (9x9) 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:停产 协议:以太网 功能:开关 接口:PCI 标准:10/100 Base-T/TX PHY 电压 - 电源:3.1 V ~ 3.5 V 电流 - 电源:122mA 工作温度:-40°C ~ 85°C 封装/外壳:100-LFBGA 供应商器件封装:100-LFBGA（9x9） 标准包装:1 |
| KSZ8842-PMQL | 功能描述:以太网 IC 2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI bus interface(Lead Free) RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
| KSZ8842-PMQL-EVAL | 功能描述:以太网开发工具 KSZ8842-PMQL Evaluation Board RoHS:否 制造商:Micrel 产品:Evaluation Boards 类型:Ethernet Transceivers 工具用于评估:KSZ8873RLL 接口类型:RMII 工作电源电压: |
| KSZ8842-PMQLI | 功能描述:以太网 IC 2-Port Ethernet Switch/Repeater + 32-bit/33MHz PCI bus interface, Ind Temp (Lead Free) RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
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