ACS8530 Semtech Corporation, ACS8530 Datasheet - Page 44
ACS8530
Manufacturer Part Number
ACS8530
Description
Synchronous Equipment Timing Source For Stratum 2/3E/3 Systems
Manufacturer
Semtech Corporation
Datasheet
1.ACS8530.pdf
(150 pages)
- Current page: 44 of 150
- Download datasheet (2Mb)
Motorola Mode
In MOTOROLA mode, the device is configured to interface with a microprocessor using a 680x0 type bus as parallel
data + address. Figure 13 and Figure 14 show the timing diagrams of read and write accesses for this mode.
Figure 13 Read Access Timing in MOTOROLA Mode
Table 20 Read Access Timing in MOTOROLA Mode (for use with Figure 13)
Revision 3.01/October 2003 © Semtech Corp.
ADVANCED COMMUNICATIONS
Symbol
t
t
t
t
t
t
t
t
t
t
t
pw1
pw2
su1
su2
t
t
d1
d2
d3
d4
h1
h2
h3
CSB
WRB
A
AD
RDY
(DTACK)
p
p
Setup A valid to CSB
Setup WRB valid to CSB
Delay CSB
Delay CSB
Delay CSB
Delay CSB
Delay CSB
CSB Low time (consecutive Read - Read)
CSB Low time (consecutive Write - Read)
RDY High time (consecutive Read - Read)
RDY High time (consecutive Write - Read)
Hold A valid after CSB
Hold WRB valid after CSB
Hold CSB Low after RDY
Time between (consecutive Read - Read) accesses (CSB
CSB
Time between (consecutive Write - Read) accesses (CSB
CSB
falling edge
falling edge
X
X
Z
Z
falling edge
falling edge
falling edge
rising edge
rising edge
)
)
address
t
su1
to AD high-Z
to RDY high-Z
t
to AD valid (consecutive Read - Read)
to AD valid (consecutive Write - Read)
to DTACK
falling edge
su2
rising edge
falling edge
falling edge
rising edge
t
Parameter
d2
rising edge
t
d1
t
pw2
t
pw1
FINAL
Page 44
data
rising edge
rising edge
t
h3
to
to
t
h1
t
t
d4
d3
160 ns
12 ns
16 ns
25 ns
25 ns
12 ns
12 ns
15 ns
t
4 ns
0 ns
0 ns
0 ns
0 ns
MIN
h2
-
-
-
X
X
Z
Z
ACS8530 SETS
F8110D_007ReadAccMotor_01
193 ns
62 ns
TYP
-
-
-
-
-
-
-
-
-
-
-
-
-
-
DATASHEET
www.semtech.com
192 ns
182 ns
40 ns
13 ns
10 ns
49 ns
MAX
9 ns
-
-
-
-
-
-
-
-
-
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