Figure 102. mode 0 – basic operation, Figure 103. mode 0 – disabling the count – Intel 386 User Manual

Page 250

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10-7

TIMER/COUNTER UNIT

Figure 10-2. Mode 0 – Basic Operation

Figure 10-3 shows suspending the counting sequence. A low level on GATEn causes the counter
to suspend counting (both the state of OUTn and the count remain unchanged). A high level on
GATEn resumes counting.

Figure 10-3. Mode 0 – Disabling the Count

Writes to

Counter

n

CLKIN

n

GATE

n

OUT

n

?

?

?

?

0004

0003

0002

0001

0000

FFFF

FFFE

Control
Word = 10H

Count

Count = 4

A2311-01

Writes to

Counter

n

CLKIN

n

GATE

n

OUT

n

?

?

?

?

0003

0002

0002

0002

0001

0000

FFFF

Control
Word = 10H

Count = 3

Count

A2394-02

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