Adlink ACL-8112 Series Manuel d'utilisateur Page 56

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48 Operation Theory
0 16-BITS BINARY COUNTER
1
BINARY CODED DECIMAL (BCD) COUNTER (4
DIGITAL)
Note
The count of the binary counter is from 0 up to
65,535 and the count of the BCD counter is from 0
up to 9,999
Mode Definitions
With the 8254, six operating modes can be selected. they are:
Mode 0: Interrupt on Terminal Count
Mode 1: Programmable One-Shot.
Mode 2: Rate Generator
Mode 3: Square Wave Rate Generator
Mode 4: Software Triggered Strobe
Mode 5: Hardware Triggered Strobe
Detail description of these six modes is written in Intel Microsystems
Components Handbook Volume II Peripherals.
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