W89C926 Datasheet, PDF (37/48 Pages) Winbond – PCMCIA ETHERNET NETWORK TWISTED PAIR INTERFACE CONTROLLER

W89C926 PENTIC+
Common Memory Access, continued
SYMBOL
DESCRIPTION
T1
HA0-16, REG valid to OE, WE assert.
T2
CE1,2 assert to OE, WE assert.
T3
OE, WE assert to WAIT asserts.
T4
HD0-15 write data setup before WE deasserts.
T5
HD0-15 write data hold from WE deasserts.
T6
HD0-15 read data disable from OE deasserts.
T7
Read data setup before WAIT deasserts.
T8
WAIT deasserts to OE, WE deassert.
T9
CE1,2 hold valid from OE, WE deassert
T10
HA0-16, REG hold valid from OE, WE deassert
T11
HA0-16, REG setup to WE deassert
T12 _{CE1,2 assert to WE deassert}
T13 _{WE pulse width}
T14 _{WAIT pulse width}
T15a _{OE deassert to next WE assert}
T15b _{WE deassert to next OE assert}
T16a Read cycle time
T16b Write cycle time
MIN.
20
0
-
50
20
-
0
0
20
20
100
100
80
-
10
10
150
150
MAX.
-
-
35
-
-
75
-
-
-
-
-
-
-
12
-
-
-
-
UNIT
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
nS
µS
nS
nS
nS
nS
- 37 -
Publication Release Date: January 1996
Revision A1