ACS411CS Semtech Corporation, ACS411CS Datasheet - Page 16

• Manufacturer Part Number: ACS411CS
• Description: Acapella Optical Modem ic
• Manufacturer: Semtech Corporation

ACS411CS PRE-RELEASE Issue 6.0 July 1999.
In INTEL mode, the device is configured to interface
with a microprocessor using a 80x86 type bus. The
following figures show the timing diagrams of write
and read accesses for this mode.
The RDY low time Trdy is at least 2 CLKX cycles
after WRB/RDB going low.
uP Interface timing - INTEL mode
Note: preliminary timing information. Timing values marked with * TBA.
CSB
RDB
AD
RDY
WRB
A
Z
Z
Symbol
tpw1
tpw2
tsu1
tsu2
td2
td3
td4
td5
td1
th1
th2
th3
Figure 6: Read access timing in INTEL Mode.
tp
address
Setup A valid to CSB
Setup CSB to RDB
(RDB
Delay RDB to AD valid
Delay CSB to RDY active
Delay RDB to RDY
Delay RDB
Delay CSB
RDB low time
RDY low time
Hold A valid after RDB
Hold CSB low after RDB
Hold RDB low after RDY
Time between consecutive accesses
WRB )
to RDB or RDB
Parameter
to RDY High-Z
to AD High-Z
16
data
to
Min
60
20
60
0
0
0
0
0
Typ
Max
10 *
10 *
10 *
10 *
10 *
60
Z
Z