PEX/PIO/PISO-DA Series Card
Analog Output Boards
User Manual/ Ver. 3.1/ Oct. 2013/ PMH-0010-31/ Page: 13
2.2
Counter Architecture
There is a single 8254(Timer/Counter) chip on the PEX/PIO/PISO-DA series board and
provides two interrupt sources. The first is a 16-bit timer output (INT0) and the other one is
a 32-bit timer output (INT1). The block diagram is shown below:
OUT0
CLK0
GATE0
Counter0
OUT1
CLK1
GATE1
Counter1
OUT2
CLK2
GATE2
Counter2
Vcc
INT0
INT1
4MHz
8254 Timer/Counter
ГК
Атлант
Инжиниринг
–
официальный
представитель
в
РФ
и
СНГ
+7(495)109-02-08 [email protected] www.bbrc.ru