TL16C552A, TL16C552AM
DUAL ASYNCHRONOUS COMMUNICATIONS ELEMENT
WITH FIFO
SLLS189D – NOVEMBER 1994 – REVISED JANUARY 1999
PARAMETER MEASUREMENT INFORMATION
TL16C552A
Serial
Channel 1
Buffers
Data Bus
9-Pin D Connector
9-Pin D Connector
Address Bus
Dual
ACE and
Printer
Port
Serial
Channel 2
Buffers
Control Bus
Option
Jumpers
Parallel
Port
25-Pin D Connector
R/C
Network
Figure 3. Basic Test Configuration
Valid
Valid
A2, A1, A0
50%
50%
t
h1
CS0, CS1, CS2
50%
50%
t
su1
t
h2
t
d1
t
su2
Active
Active
IOR
50%
50%
50%
t
d2
t
w4
or
Active
IOW
50%
t
pd1
t
t
pd1
BDO
50%
50%
t
dis
en
DB0–DB7
Valid Data
Figure 4. Read Cycle Timing Waveforms
11
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