參數(shù)資料
型號(hào): GT-48207
廠商: Galileo Technology Services, LLC
英文描述: Advanced Switched Ethernet Controllers for 10+10/100 BaseX(高級(jí)交換式 10+10/100 BaseX以太網(wǎng)控制器)
中文描述: 先進(jìn)的交換式以太網(wǎng)控制器的10 10/100 BaseX(高級(jí)交換式10 10/100 BaseX以太網(wǎng)控制器)
文件頁(yè)數(shù): 122/135頁(yè)
文件大?。?/td> 1619K
代理商: GT-48207
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GT-482xx Switched Ethernet Controllers for 10+10/100 BaseX
GALI
L
E
O
TECHNOLOGY
CONFI
D
ENTI
AL
--
DO
NOT
REPRODUCE
Revision 1.2
87
1. On software RESET, any register bits that are sampled by configuration pins are NOT affected. All other register bits are
reset to their initial value.
23
CrcEn
CRC Enable - Enable CRC generation.
0 - Disable
1 - Enable
0x0
24
Limit4
Limit4 - This bit together with Limit4 pin selects the
number of consecutive collisions which will occur
before the collision counter is reset. When the logical
OR of this bit and Limit4 pin is LOW, 16 consecutive
collisions must occur before the collision counter is
reset (802.3 standard). When HIGH, 4 consecutive
collisions must occur before the collision counter is
reset (more aggressive).
0x0
25
SyncMode
Synchronous mode
0 - Cclk and Aclk are not synchronized
1 - Cclk and Aclk are synchronized and should be
driven from the same clock source
Note: the GT-482xx can work in asynchronous mode
even if the Aclk and Cclk are the same.
0x0
26
DisPktLock
Discard packet in Lock mode
0 - Discards the packet with a new address in locked
mode
1 - Forwards the packet with new address in locked
mode
0x0
31:27
Reserved
-
Table 24: Status Register, Offset: 0x08
B it s
Field N a m e
Function
Init ia l Va lue
2:0
Revision number
Indicates the GT-482xx revision number
0x0
3
DRAM_size
Indicates the DRAM size:
0 - 1Mbyte.
1 - 4Mbyte.
DQM at reset
17:4
Port 13:0 link
These bits indicate link on the ports.
Link on the 10Mbps ports (0-11) is indicated by a ‘0’.
Link on the 100Mbps ports (13-12) is indicated by a ‘1’.
0x0
31:18
Port 13: 0 partition
These bits indicate partition on the ports
0x0
Table 23: Global Control, Offset: 0x04 (Continued)
B it s
Field N ame
Function
Init i al Va lu e
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