ax88796 ASIX Electronics Corporation, ax88796 Datasheet - Page 56

• Manufacturer Part Number: ax88796
• Description: Non-pci 8/16-bit 10/100m Fast Ethernet Controller With Embedded Phy
• Manufacturer: ASIX Electronics Corporation

7.4.3 ISA Bus Access Timing
(1) Read cycle:
AEN
/BHE
SA[9:0],/CS
/IOCS16
RDY *1
/IORD
Read Data
SD[15:0](Dout)
*1: If /RDY did not connect, a minumin delay 280 ns must wait between Remote DMA read command ready and 1
valid
Tsu(AEN)
Th(AEN)
Tsu(A)
Th(A)
Tv(CS16-A)
Tdis(CS16-A) /IOCS16 DISABLE FROM SA[9:0], /CS, /BHE AND
Tv(RDY)
Tdis(RDY)
Ten(RD)
Tdis(RD)
T iord
T idle
Symbol
AX88796 L
AEN SETUP TIME
AEN HOLD TIME
ADDRESS SETUP TIME
ADDRESS HOLD TIME
/IOCS16 VALID FROM SA[9:0], /CS, /BHE AND
AEN
AEN
RDY
/CS,/BHE AND AEN
RDY DISABLE FROM /IORD
OUTPUT ENABLE TIME FROM /IORD
OUTPUT DISABLE TIME FROM /IORD
IORD LOW REQUIRE TIME
IORD HI REQUIRE TIME FOR REGISTER
IORD HI REQUIRE TIME FOR DATA PORT
Tv(CS16-A)
Z-pull up
VALID
Tv(RDY)
Tsu(AEN)
FROM
Description
Tsu(A)
SA[9:0]=310
Ten(RD)
3-in-1 Local Bus Fast Ethernet Controller
T iord
Z-pull up
VALID,
DATA Valid
Tdis(RDY)
56
Th(A)
Th(AEN)
Min
100
0.5
60
60
0
5
0
5
0
-
-
-
-
Tdis(RD)
ASIX ELECTRONICS CORPORATION
Typ.
Z-pull up
-
-
-
-
-
-
-
-
-
-
-
-
T idle
Tdis(CS16-A)
Max
20
20
25
6
4
-
-
-
-
-
-
-
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
st
date