參數(shù)資料
型號(hào)： AX88780_07
廠商： ASIX Electronics Corporation
英文描述： IC,D/A CONVERTER,MC144110DW, 6-BIT,5-15V,SOIC-20,3-7US SER.
中文描述： 高性能非PCI單芯片32位10/100M自適應(yīng)快速以太網(wǎng)控制器
文件頁(yè)數(shù)： 16/55頁(yè)
文件大小： 379K
代理商： AX88780_07
AX88780
16
ASIX ELECTRONICS CORPORATION
3.11 EEPROM Format
AX88780 will auto-load data from EEPROM device after hardware reset. If the EEPROM device is not attached, the
loading operation will be discarded. The EEPROM mainly provides MAC address information and CIS information if it is
used in PCMCIA environment. Below table is the format if EEPROM device is employed. Note: If the MAC address is 12
34 56 78 9A BC (MSB-LSB) then driver should set MACID0=0x9ABC, MACID1=0x5678 and MACID2=0x1234.
Address
0
Pointer to CIS area starting address. Set this field to 0x0070 to shorten the download EEPROM if there is
no CIS needed. AX88780 only supports 93C56-16bit mode, thus the max value of this field is 0x007F. This
field should not be set to 0x0000 or 0xFFFF; otherwise, AX88780 will not recognize the EEPROM during
hardware reset.
1
MACID0 data
2
MACID1 data
3
MACID2 data
4
Reserved, keep all 0’s
5
Bit0: When LINKLED is set to ‘1’ in reset stage, this bit indicates AX88780 whether or not it is in the
environment of PCMCIA.
0 = General 16-bit mode,
1= Special for PCMCIA environment of 16-bit mode.
Bit1: 0 = Use external PHY,
1 = Use internal PHY. This function is independent from PHY_EN bit of PHY_CTRL register. Either
of both is set will force AX88780 to select internal PHY.
Others bit set to 0s for normal operation
6 ~ 11
Reserved, keep all 0’s
12 ~ 127
CIS area, if it used in PCMCIA system, otherwise don’t care these fields
Description
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