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參數(shù)資料
| 型號(hào)： | RTL8139B |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | REALTEK SINGLE CHIP FAST ETHERNET CONTROLLER WITH POWER MANAGEMENT |
| 中文描述： | 瑞昱單芯片快速以太網(wǎng)控制器電源管理 |
| 文件頁數(shù)： | 16/62頁 |
| 文件大小： | 648K |
| 代理商： | RTL8139B |
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RTL8139C(L)
2002/01/10
Rev.1.4
16
6.7 Transmit Configuration Register
(Offset 0040h-0043h, R/W)
This register defines the Transmit Configuration for the RTL8139C(L). It controls such functions as Loopback, Heartbeat, Auto
Transmit Padding, programmable Interframe Gap, Fill and Drain Thresholds, and maximum DMA burst size.
Bit
31
30-26
R/W
-
R
Symbol
-
HWVERID
Description
Reserved
Hardware Version ID:
RTL8139
RTL8139A
RTL8139A-G
RTL8139B
RTL8130
RTL8139C
Reserved
Interframe Gap Time:
This field allows adjustment of the interframe
gap time below the standards of 9.6
us for 10Mbps, 960 ns for
100Mbps. The time can be programmed from 9.6 us to 8.4 us (10Mbps)
and 960ns to 840ns (100Mbps). Note that any value other than (1, 1)
will violate the IEEE 802.3 standard.
Bit30
1
1
1
1
1
1
Bit29
1
1
1
1
1
1
Bit28
0
1
1
1
1
1
Bit27
0
0
0
1
1
0
Bit26
0
0
0
0
1
1
Bit23
0
0
1
0
0
0
All other combination
25-24
R/W
IFG1, 0
The formula for the inter frame gap is:
10 Mbps
100 Mbps
RTL8139A rev.G ID = 1. For others, this bit is 0.
Reserved
Loopback test:
There will be no packet on the TX+/- lines under the
Loopback test condition. The loopback function must be independent of
the link state.
8.4us + 0.4(IFG(1:0)) us
840ns + 40(IFG(1:0)) ns
23
R
-
8139A-G
-
LBK1, LBK0
22-19
18, 17
R/W
00: normal operation
01: Reserved
10: Reserved
11: Loopback mode
Append CRC:
0: A CRC is appended at the end of a packet
1: No CRC appended at the end of a packet
Reserved
Max DMA Burst Size per Tx DMA Burst:
This field sets the
maximum size of transmit DMA data bursts according to the following
table:
000 = 16 bytes
001 = 32 bytes
010 = 64 bytes
011 = 128 bytes
100 = 256 bytes
101 = 512 bytes
110 = 1024 bytes
111 = 2048 bytes
16
R/W
CRC
15-11
10-8
-
-
R/W
MXDMA2, 1, 0
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PDF描述 |
|---|---|
| RTL8139D | REALTEK SINGLE CHIP FAST ETHERNET CONTROLLER WITH POWER MANAGEMENT |
| RTL8201 | REALTEK SINGLE CHIP SINGLE PORT 10/100M FAST ETHERNET PHYCEIVER RTL8201BL |
| RTL8201BL | REALTEK SINGLE CHIP SINGLE PORT 10/100M FAST ETHERNET PHYCEIVER RTL8201BL |
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| RTOB | precision resistors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| RTL8139C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:REALTEK SINGLE CHIP FAST ETHERNET CONTROLLER WITH POWER MANAGEMENT |
| RTL8139C_PLUS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:RTL8139C_Plus Specification |
| RTL8139CL | 制造商:Realtek Semiconductor 功能描述: |
| RTL8139CL+ | 制造商:Realtek Semiconductor 功能描述: |
| RTL8139D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:SINGLE-CHIP MULTI-FUNCTION 10/100Mbps ETHERNET CONTROLLER WITH POWER MANAGEMENT |
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