CTS9513API-2 datasheet(14/28 Pages) ETC

14 / 28 page

Celeritous Technical Services Corp

800.687.6510 / 806.793.0708

3308 34th St

FAX

806.793.0710

Lubbock, Texas 79410

http://www.celeritous.com

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

Rev E

Tuesday, September 25,

CTS9513-2

5 Chan 16 bit 20MHz Counter/Timer

Mode A - Software Triggered Strobe with no Gating

As shown in Figure 10, The counter is only active

after receipt of an ARM command. On reaching TC

the counter automatically reloads from the Load

command.

MODE B - SOFTWARE TRIGGERED

STROBE WITH LEVEL GATING

In Mode B, illustrated in Figure 11 the counter is only

active when both an ARM command has been

received and the selected Gate line is active. The

counter will halt counting when the gate line is de-

asserted and resume counting when the gate line is

re-asserted until the counter reaches TC. When the

counter reaches TC the timer will reload from the

load register and disarm automatically until a new

ARM command is received.

SOURCE

DATA

ARM COMMAND

L-1

L-2

L-3

.....

COUNT VALUE

TC OUTPUT

TOGGLE OUTPUT

COUNTER MODE A WAVEFORMS

GATE

Figure 10 - CTS9513 Counter Mode A Representative Waveforms

SOURCE

DATA

ARM COMMAND

GATE

L-1

...

L-3

L-2

L-1

COUNT VALUE

TC OUTPUT

TOGGLE OUTPUT

COUNTER MODE B WAVEFORMS

Figure 11 - CTS9513 Counter Mode B Representative Waveforms

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