參數(shù)資料
型號: MDS212
廠商: Zarlink Semiconductor Inc.
英文描述: 12-Port 10/100Mbps Ethernet Switch
中文描述: 12端口10/100Mbps以太網(wǎng)交換機
文件頁數(shù): 85/111頁
文件大?。?/td> 1609K
代理商: MDS212
MDS212
Data Sheet
85
Zarlink Semiconductor Inc.
18.2.10 Flow Control Management
18.2.10.1 AFCRIA - Flow Control RAM Input Address
Access:
Address:
Non-Zero-Wait-State,
h65C
Direct Access, Write only
Bit [2:0]
3-bit address for the RAM in MAC storing flow control frame
Usage:
Flow Control Frame consists of 64 Bytes. Using AFCRIA and AFCRID0-1, the CPU loads 8 bytes each
time. The CPU specifies the address in AFCRIA and writes the content of 4 bytes in AFCRID0 and 4 Bytes in
AFCRID1. Then repeats the above procedure 8 times to load a whole flow control frame into the Chip.
18.2.10.2 AFCRID0 - Flow Control RAM Input Data 0
Access:
Address:
Non-Zero-Wait-State,
h660
Direct Access,
Write only
Bit [31:0]
Content of flow control frame [31:0],
Flow Control Frame has 64 bytes and is defined by IEEE
18.2.10.3 AFCRID1 - Flow Control RAM Input Data 1
Access:
Address:
Non-Zero-Wait-State,
h664
Direct Access,
Write only
Bit [31:0]
Content of flow control frame [63:32]
18.2.10.4 AFCR - Flow Control Register
Access:
Address:
Non-Zero-Wait-State,
h670
Direct Access,
Write/Read
Bit [9:0]
Reserved
Bit [12:10]
XON_Thd
Defines the minimum # of free Frame Buffers before
transmitting XON flow control frame.
31
3
2
0
address
31
24
23
16
15
8
7
0
Content of Input Flow Control Frame[31:0]
31
24
23
16
15
8
7
0
Content of Input Flow Control Frame[63:32]
31
16
15
14
13
12
10
9
0
XN
FE
AE
XON_Thd
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MDS212CG 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:12-Port 10/100Mbps Ethernet Switch
MDS213 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:12-Port 10/100Mbps + 1Gbps Ethernet Switch
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MDS217 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog IC
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