
ASIX ELECTRONICS CORPORATION
3
AX88790 L 3-in-1 PCMCIA Fast Ethernet Controller
4.4.6 MR5 –Autonegotiation Link Partner (LP) Ability Register (Next Page) Bit Descriptions.......................... 31
4.4.7 MR6 – Autonegotiation Expansion Register Bit Descriptions................................................................... 31
4.4.8 MR7 –Next Page Transmit Register Bit Descriptions ............................................................................... 32
4.4.9 MR16 – PCS Control Register Bit Descriptions........................................................................................ 32
4.4.10 MR17 –Autonegotiation Register A Bit Descriptions.............................................................................. 33
4.4.11 MR18 –Autonegotiation Register B Bit Descriptions.............................................................................. 33
4.4.12 MR20 –User Defined Register Bit Descriptions...................................................................................... 33
4.4.13 MR21 –RXER Counter Register Bit Descriptions................................................................................... 34
4.4.14 MR28 –Device-Specific Register 1 (Status Register) Bit Descriptions..................................................... 34
4.4.15 MR29 –Device-Specific Register 2 (100Mbps Control) Bit Descriptions................................................. 35
4.4.16 MR30 –Device-Specific Register 3 (10Mbps Control) Bit Descriptions................................................... 36
4.4.17 MR31 –Device-Specific Register 4 (Quick Status) Bit Descriptions........................................................ 37
5.0 DEVICE ACCESS FUNCTIONS.................................................................................................................... 38
5.1 PCMCIA
INTERFACE ACCESS FUNCTIONS
.......................................................................................................... 38
5.1.1 Attribute Memory access function functions............................................................................................. 38
5.1.1 I/O access function functions.................................................................................................................... 38
5.2 MII S
TATION
M
ANAGEMENT FUNCTIONS
.......................................................................................................... 39
6.0 ELECTRICAL SPECIFICATION AND TIMINGS....................................................................................... 40
6.1 A
BSOLUTE
M
AXIMUM
R
ATINGS
........................................................................................................................ 40
6.2 G
ENERAL
O
PERATION
C
ONDITIONS
................................................................................................................... 40
6.3 DC C
HARACTERISTICS
..................................................................................................................................... 40
6.4 A.C. T
IMING
C
HARACTERISTICS
....................................................................................................................... 41
6.4.1 XTAL / CLOCK........................................................................................................................................ 41
6.4.2 Reset Timing............................................................................................................................................ 41
6.4.3 Attribute Memory Read Timing................................................................................................................ 43
6.4.4 Attribute Memory Write Timing................................................................................................................ 44
6.4.5 I/O Read Timing....................................................................................................................................... 45
6.4.6 I/O Write Timing...................................................................................................................................... 46
6.4.7 MII Timing............................................................................................................................................... 47
7.0 PACKAGE INFORMATION........................................................................................................................... 48
APPENDIX A: APPLICATION NOTE 1............................................................................................................. 49
A.1 U
SING
C
RYSTAL
25MH
Z
................................................................................................................................. 49
A.2 U
SING
O
SCILLATOR
25MH
Z
............................................................................................................................ 49
APPENDIX B: POWER CONSUMPTION REFERENCE DATA...................................................................... 50
ERRATA OF AX88790 .......................................................................................................................................... 51
DEMONSTRATION CIRCUIT (A) : AX88790 + HOMEPNA 1M8 PHY.......................................................... 52
DEMONSTRATION CIRCUIT (B) : AX88790 ONLY ....................................................................................... 57