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參數(shù)資料
| 型號： | AX88170L |
| 廠商： | ASIX Electronics Corporation |
| 英文描述： | USB to Fast Ethernet/HomePNA Controller |
| 中文描述： | USB到快速以太網(wǎng)/電話線網(wǎng)絡(luò)控制器 |
| 文件頁數(shù)： | 9/39頁 |
| 文件大?。?/td> | 316K |
| 代理商： | AX88170L |
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ASIX ELECTRONICS CORPORATION
9
CONFIDENTIAL
AX88170 PRELIMINARY
2.4 RMII interface signal pins (PHY mode)
When /S_RMII=0 and /S_MAC=1
SIGNAL
TYPE
PIN NO.
RXD[1:0]
CRS_DV
O
DESCRIPTION
O
27, 26
Receive Data :
Basically RXD[1:0] is transformed from TXD[1:0] of MAC
mode of RMII interface.
Carrier Sense _ Data Valid :
Basically CRS_DV is transformed of TX_EN
from MAC mode of RMII interface.
Transmit Data :
Basically TXD[1:0] is transformed from RXD[1:0] of MAC
mode of RMII interface.
Transmit Enable :
Basically TX_EN is transformed from RX_DV from MAC
mode of RMII interface.
Reference clock :
The input is a continue clock at 50Mhz for timing
reference with RMII interface.
15
TXD[1:0]
TX_EN
REF_CLK
I/PU
I/PD
I
19, 18
22
16
Tab – 5 RMII interface signal pins (PHY mode)
2.5 Miscellaneous pins group
SIGNAL
TYPE
25M_XIN
PIN NO.
35
DESCRIPTION
I
CMOS Local Clock : Typical a 25Mhz clock, +/- 100 ppm, 40%-60% duty
cycle. ( See application note also )
Crystal Oscillator Input : Typical a 25Mhz crystal, +/- 25 ppm can be
connected across 25M_XIN and 25M_XOUT.
Crystal Oscillator Output : Typical a 25Mhz crystal, +/- 25 ppm can be
connected across 25M_XIN and 25M_XOUT. If a single-ended external
clock is connected to 25M_XIN, the crystal output pin should be left
floating.
48Mhz CMOS Clock In : Typical a 48Mhz clock, +/- 500 ppm, 40%-60% duty
cycle. ( See application note also )
48Mhz Crystal Oscillator Input: Typical a 48Mhz crystal, +/- 100 ppm can be
connected across 48M_XIN and 48M_XOUT.
48Mhz Crystal Oscillator Output: Typical a 48Mhz crystal, +/- 100 ppm can
be connected across 48M_XIN and 48M_XOUT. If a single-ended external
clock is connected to 48M_XIN, the crystal output pin should be left
floating.
Clock Output : This clock is source from 25M_XIN.
Reset:
Reset is active low then place AX88170 into reset mode immediately.
During Rising edge the AX88170 loads the EEPROM data.
Set to RMII mode:
0: RMII mode is selected.
1: MII mode is selected. (default)
Set MII/RMII interface to MAC mode:
0: MAC mode is selected. (default)
1: PHY mode is selected.
Set duplex mode when PHY mode is selected or When S_EXT is set and
MAC mode is selected:
0: full-duplex mode is selected. (default)
1: half-duplex mode is selected.
Select where duplex mode is sourced from when MAC mode:
0: duplex mode depands on internal register. (default)
1: duplex mode depands on external signal /S_FDPX
The setting is enable speed up test mode:
25M_XOUT
O
36
48M_XIN
I
52
48M_XOUT
O
51
25M_CLKO
/RST
O
33
4
I/PD
/S_RMII
I/PU
43
/S_MAC
I/PD
9
/S_FDPX
I/PD
8
S_EXT
I/PD
7
SPD_UP
ID
6
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AX88172A | USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88172ATF | USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88772A | USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88772ALF | USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88172L | USB to Fast Ethernet/HomePNA Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AX88172 | 制造商:ASI 制造商全稱:ASI 功能描述:USB2.0 TO ETHERNET Device setup guide |
| AX88172A | 制造商:ASIX 制造商全稱:ASIX 功能描述:USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88172ATF | 制造商:ASIX 制造商全稱:ASIX 功能描述:USB 2.0 to 10/100M Fast Ethernet Controller |
| AX88172L | 制造商:ASIX 制造商全稱:ASIX 功能描述:USB to Fast Ethernet/HomePNA Controller |
| AX88178 | 制造商:ASIX 制造商全稱:ASIX 功能描述:USB to 10/100/1000 Gigabit Ethernet/HomePNA Controller |
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