ACS8514 Semtech Corporation, ACS8514 Datasheet - Page 22

• Manufacturer Part Number: ACS8514
• Description: Synchronous Equipment Timing Source Partner IC for 2nd T4 Dpll, Accurate Monitoring & Input Extender
• Manufacturer: Semtech Corporation

Intel Mode
In Intel mode, the device is configured to interface with a microprocessor using a 80x86 type bus as parallel data +
address. Figure 7 and Figure 8 show the timing diagrams of read and write accesses for this mode.
Figure 7 Read Access Timing in INTEL Mode
Table 12 Read Access Timing in INTEL Mode (for use with Figure 7 )
Revision 3.00 April 2007 © Semtech Corp.
ADVANCED COMMS & SENSING
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
pw1
pw2
su1
su2
t
t
d1
d2
d3
d4
d5
h1
h2
h3
p
p
Setup A valid to CSB
Setup CSB
Delay RDB
Delay RDB
Delay CSB
Delay RDB
Delay RDB
Delay CSB
RDB Low time (consecutive Read - Read)
RDB Low time (consecutive Write - Read)
RDY Low time (consecutive Read - Read)
RDY Low time (consecutive Write - Read)
Hold A valid after RDB
Hold CSB Low after RDB
Hold RDB Low after RDY
Time between (consecutive Read - Read) accesses (RDB
to RDB
Time between (consecutive Write - Read) accesses (RDBrising
edge to RDB
falling edge
falling edge
rising edge
falling edge
falling edge
falling edge
falling edge
rising edge
falling edge
, or RDB
to RDY high-Z
to AD high-Z
to RDY active
to AD valid (consecutive Read - Read)
to AD valid (consecutive Write - Read)
to RDY
to RDB
, or RDB
falling edge
rising edge
rising edge
rising edge
rising edge
falling edge
falling edge
Parameter
rising edge
to WRB
to WRB
falling edge
Page 22
FINAL
falling edge
)
)
rising edge
ACS8514 SETS Buddy
160 ns
35 ns
20 ns
20 ns
15 ns
12 ns
12 ns
35 ns
4 ns
0 ns
0 ns
0 ns
0 ns
MIN
-
-
-
-
195 ns
60 ns
TYP
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
DATASHEET
www.semtech.com
193 ns
182 ns
40 ns
13 ns
14 ns
10 ns
11 ns
45 ns
MAX
-
-
-
-
-
-
-
-
-