Z86E3016PSG Datasheet, PDF (144/348 Pages) Zilog, Inc. – Z86E3016PSG

Z8 Family of Microcontrollers
User Manual
126
timer is in Continuous Counting Mode, Tout will have a 50 percent duty
cycle output. This duty cycle can easily be controlled by varying the ini-
tial values after each end-of-count.
The internal clock can be selected as output instead of T0 or T1 by setting
TMR bit 7 and bit 6 both to 1. The internal clock (XTAL frequency ÷ 2) is
then directly output on P36 (see Figure 79).
While programmed as T_OUT, P36 cannot be modified by a write to port
register P3. However, the Z8^® software can examine the P36 current out-
put by reading the port register.
IRQ₄
(T0 End-of-Count)
TMR
D7–D6 = 01
÷2
P36
IRQ₅
(T1 End-of-Count)
TMR
D7–D6 = 10
Figure 78. T0 and T1 Output Through T_OUT
T_OUT
Counters and Timers
UM001602-0904