AX88196BLF Datasheet, PDF (72/86 Pages) ASIX Electronics Corporation – Low-pin-count Non-PCI 8/16-bit 10/100M Fast Ethernet Controller with MII Interface

7.4.4 8051 Bus Access Timing
(1) Read cycle
AX88196BLF
PSEN, CSn, SA[5:0]
RDn
SD[15:0]
Tasu
Tah
Tcycle
Trdl
Trdh
Tdv
Tdon
Tdo h
Tdof f
Symbol
Tasu
Tah
Tdv
Description
ADDRESS SETUP TIME
ADDRESS HOLD TIME
DATA VALID TIME FROM RDn
Tdoh DATA OUTPUT HOLD TIME
Trdl RDn LOW REQUIRE TIME
Trdh RDn HI REQUIRE TIME
Tdon DATA BUFFER TURN ON TIME
Tdoff DATA BUFFER TURN OFF TIME
Tcycle READ CYCLE TIME
*¹ : Base on SD bus output load 25pF
*² : Base on SD bus output load 50pF
Min Typ. Max Units
0
-
-
ns
0
-
-
ns
-
-
33*¹
ns
35*²
0
-
-
ns
35
-
-
ns
13
-
-
ns
0
ns
7
ns
48
ns
72
ASIX ELECTRONICS CORPORATION