参数资料
型号: KSZ8841-16MQL
厂商: Micrel Inc
文件页数: 67/105页
文件大小: 0K
描述: IC MAC CTRLR 8/16BIT 128-PQFP
标准包装: 66
控制器类型: 以太网控制器,MAC
接口: 总线
电源电压: 3.1 V ~ 3.5 V
工作温度: 0°C ~ 70°C
安装类型: 表面贴装
封装/外壳: 128-BFQFP
供应商设备封装: 128-PQFP(14x20)
包装: 托盘
产品目录页面: 1080 (CN2011-ZH PDF)
配用: 576-1631-ND - BOARD EVALUATION KSZ8841-16MQL
其它名称: 576-2112
KSZ8841-16MQL-ND
Micrel, Inc.
KSZ8841-16/32 MQL/MVL/MBL
October 2007
64
M9999-102207-1.6
Bank 16 Receive Control Register (0x04): RXCR
This register holds control information programmed by the CPU to control the receive function.
Bit
Default Value
R/W
Description
15-11
-
RO
Reserved.
10
0x0
RW
RXFCE Receive Flow Control Enable
When this bit is set and the KSZ8841M is in full-duplex mode, flow control is enabled, and the
KSZ8841M will acknowledge a PAUSE frame from the receive interface; i.e., the outgoing
packets are pending in the transmit buffer until the PAUSE frame control timer expires. This
field has no meaning in half-duplex mode and should be programmed to 0.
When this bit is cleared, flow control is not enabled.
9
0x0
RW
RXEFE Receive Error Frame Enable
When this bit is set, CRC error frames are allowed to be received into the RX queue.
When this bit is cleared, all CRC error frames are discarded.
8
-
RO
Reserved.
7
0x0
RW
RXBE Receive Broadcast Enable
When this bit is set, the RX module receives all the broadcast frames.
6
0x0
RW
RXME Receive Multicast Enable
When this bit is set, the RX module receives all the multicast frames (including broadcast
frames).
5
0x0
RW
RXUE Receive Unicast
When this bit is set, the RX module receives unicast frames that match the 48-bit Station MAC
address of the module.
4
0x0
RW
RXRA Receive All
When this bit is set, the KSZ8841M receives all incoming frames, regardless of the frame’s
destination address.
3
0x0
RW
RXSCE Receive Strip CRC
When this bit is set, the KSZ8841M strips the CRC on the received frames. Once cleared, the
CRC is stored in memory following the packet.
2
0x0
RW
QMU Receive Multicast Hash-Table Enable
When this bit is set, this bit enables the RX function to receive multicast frames that pass the
CRC Hash filtering mechanism.
1
-
RO
Reserved.
0
0x0
RW
RXE Receive Enable
When this bit is set, the RX block is enabled and placed in a running state.
When this bit is cleared, the receive process is placed in the stopped state upon completing
reception of the current frame.
Bank 16 TXQ Memory Information Register (0x08): TXMIR
This register indicates the amount of free memory available in the TXQ of the QMU module.
Bit
Default Value
R/W
Description
15-13
-
RO
Reserved.
12-0
-
RO
TXMA Transmit Memory Available
The amount of memory available is represented in units of byte. The TXQ memory is used for
both frame payload, control word.
Note: Software must be written to ensure that there is enough memory for the next transmit
frame including control information before transmit data is written to the TXQ.
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