Renesas 7700 FAMILY User Manual page 97

TIMER A
5.3 Timer mode
FFFF
n
0000
Count start bit
Count valid
TAi pin's level
IN
input signal
Invalid level
Timer Ai interrupt
request bit
The counter counts when the count start bit = "1" and the TAi
level.
The counter stops counting while the TAi
counter value is retained.
Fig. 5.3.5 Example of operation selecting gate function
5–16
n = Reload register's contents
Starts counting.
16
16
Set to "1" by software.
"1"
"0"
"1"
"0"
pin's input signal is not at the count valid level, and the
IN
7751 Group User's Manual
Stops counting.
pin's input signal is at the count valid
IN
Time
Cleared to "0" when
interrupt request is
accepted or cleared
by software.