参数资料
型号: GT-48208
厂商: Galileo Technology Services, LLC
英文描述: Advanced Switched Ethernet Controllers for 10+10/100 BaseX(高级交换式 10+10/100 BaseX以太网控制器)
中文描述: 先进的交换式以太网控制器的10 10/100 BaseX(高级交换式10 10/100 BaseX以太网控制器)
文件页数: 5/135页
文件大小: 1619K
代理商: GT-48208
GT-482xx Switched Ethernet Controllers for 10+10/100 BaseX
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TECHNOLOGY
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Revision 1.2
Table 56: SDRAM Operation, Offset: 0x1474
B i t s
Fie ld N ame
Funct ion
Initial Va lu e
2:0
SdramOp
SDRAM Operation. These bits select the SDRAM opera-
tion as follows:
000 - Normal DRAM mode
001 - NOP Command
010 - All banks precharge command
011 - Mode register command enable
100 - CBR cycle enable
0x0
Table 57: Address Decode, Offset: 0x147C
B i t s
Field N ame
Function
Init i al Va lue
0
DRAM Size
0 - 1Mbyte
1 - 4Mbyte
DQM pin at
reset
Table 58: Port Control (10M ports), Offset: 0x400-0x40C, 0x800 - 0x80C, 0xC00 - 0xC0C
B i t s
Field N ame
Funct ion
Initial Va lu e
0
PortEn
Port Enable.
0 - Port is disabled
1 - Port is enabled
0x1
1
FullDx
Half/full duplex.
0 - Port works in half-duplex mode
1 - Port works in full-duplex mode
TxDE (at
RESET)
3:2
SerMode
Serial Mode.
These bits indicate the serial mode. The logic order at
reset is DData[1:0] for port 0, DData[3:2] for port 1, where
port
n corresponds to DData [ 2n+1:2n ] .
00 - 10Base-T
01 - 10Base-FL
10 - AUI
11 - Reserved
Corresponding
DData[] pins at
RESET
4
LockPort
Locked Port
0 - port is in normal mode
1 - port is locked. The GT-482xx does not learns new
addresses and send then ONLY to the CPU
0x0
5
ForBroadCPU
Forward Broadcast to the CPU. Meaningful only when Fil-
Broad (bit 10) is clear.
0 - Forward Broadcast packets to all ports
1 - Forward Broadcast packets only to the CPU
Note: For exact description see "Address Recognition" on
0x0
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