Measurement-computing CIO-PDMAxx Bedienungsanleitung PDF herunterladen (Seite 16)

RL1 to RL0 are the read and load control bits:

RL1 RL0 OPERATION

0 0 Latch counter.

0 1 Read/load high byte.

1 0 Read/load low byte.

1 1 Read/load low then high byte (word transfer).

M2 to M0 are the counter control operation type bits:

M2 M1 M0 OPERATION TYPE

0 0 0 Change on terminal count.

0 0 1 Programmable one-shot.

0 1 0 Rate generator

0 1 1 Square wave generator

1 0 0 Software triggered strobe.

1 0 1 Hardware triggered strobe.

BCD = 0 then counter data is 16-bit binary. (65,535 max)

BCD = 1 then counter data is 4-decade Binary-Coded-Decimal. (9,999 max)

Figure 5-1. Pacer Clock Block Diagram

1 2 ... 11 12 13 14 15 16 17 18 19 20 21 ... 31 32

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Measurement-computing CIO-PDMAxx Bedienungsanleitung Seite 16