Intel 386

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