83C795 Datasheet, PDF (107/136 Pages) List of Unclassifed Manufacturers – Ethernet System Controller

83C795
AC OPERATING CHARACTERISTICS AND TIMING
PARAMETER
T1
T2
T6
T7
T8
T9
T 10
T 11
T 12
T 13
T 14
T 15
T 20
T 21
T 22
T 23
T 27
T 28
T 29
T 30
T 31
T 32
T 33
T 35
T 36
T 41
T 42
T 43
T 46
T 48
T 49
T 50
T 51
T 52
DESCRIPTION
R egis ter R ead: data valid delay
R egis ter R ead: data hold time
Addres s setup for regis ter I/O
Addres s hold for regis ter I/O
IOR DY inactive delay from I/O s trobe
IOR DY active delay from X1
IOR DY tris tate delay from I/O s trobe
R egis ter write: data s et up time
R egis ter write: data hold time
IOW active time
IOR active time
MCS 16 active from LA addres s (FINE 16=0)
M16CS inactive from LA addres s
IO16CS active from S A address
IO16CS inactive from S A address
IOR DY active delay from HOS T CLK
Z WS tris tate delay from S ME Mx s trobe
Z WS active from ME Mx strobe (16 bit)
Z WS tris tate from ME Mx s trobe
S ME MR active to inactive
S ME MR active to R OMCS active
R OMCS active to S D valid
R OM read: data hold time
S A addres s setup for ME Mx s trobe
S A adres s hold for ME Mx s trobe
IOR DY inactive delay from ME M s trobe
IOR DY active delay from X1
IOR DY tris tate delay from ME M s trobe
Z WS active delay from HOS T CLK
E E CS s et up time
E E CS hold time
R LE D s et up time
R LE D hold time
E E DO delay
MIN
3
–
–
–
–
–
–
15
20
300
300
–
–
–
–
–
–
–
–
425
–
–
15
18
–
–
–
–
–
100
100
100
100
–
TYP
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
9
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
MAX
5
15
18
0
20
28
14
–
–
–
–
15
13
17
15
25
11
13
11
–
155
270
–
–
0
23
27
17
17
–
–
–
–
200
UNITS
Cycles
ns ec
TABLE 10-2. TIMING PARAMETERS
94