ACD82124 Datasheet, PDF (37/48 Pages) List of Unclassifed Manufacturers – 24 Ports 10/100 Fast Ethernet Switch Controller

CPU Com m and Tim ing
CPUDI
t4
t1 t2
idle state
start
stop
bit ^{bit 0 bit 1 bit 2 bit 3 bit 4 bit 5 bit 6 bit 7} bit
CPUDO
bit bit stop
6 7 bit
T#
D es cription
MIN T Y P MA X U NIT
t1
CP U idle time
0
-
-
us
t2
CP U command bit time
10 -
-
us
t3
R es pons e time
0
-
2 0 ms
t4
Command time
-
-
2 0 ms
stop
bit
t3
start
bit0
bit
ARL Result Timing
ARLCLK
ARLDO
ARLDI
DA1
DA2
t1
Result1
t2
t3
T#
D es cript ion MIN T Y P MA X U N IT
t1 time between DAs 0
-
-
ns
t2 time for AR L res ult 0
- 200 ns
t3 time between res ults 0
-
-
ns
Result2
37