Z86D99 ZILOG [Zilog, Inc.], Z86D99 Datasheet - Page 48

• Manufacturer Part Number: Z86D99
• Description: Low-Voltage Micro controllers with ADC
• Manufacturer: ZILOG [Zilog, Inc.]

PS003807-1002
IRQ5 (T1 end-of-count)
Figure 26. Counter/Timer Output Using T
The internal clock can be selected as output instead of T
and D
P5
Figure 27. Internal Clock Output Using T
While programmed as T
However, the Z8 software can examine P5
register.
T
The Timer Mode register TMR (
Prescaler register PRE
conjunction with T
•
•
•
•
IN
6
OSC
External clock input
Gated internal clock
Triggered internal clock
Retriggerable internal clock
Modes
(Figure 27).
6
both to
TMR
TMR
1
. The internal clock (XTAL frequency/2) is then directly output on
1
P
+2
in one of four modes:
R
1
OUT
Internal clock
(
F3h
E
+2
, P5
L
) (Figure 29) to configure P5
6
F1h
I
cannot be modified by a write to port register P5.
M
) (Figure 28) is used in conjunction with the
Z86D990/Z86D991 OTP and Z86L99X ROM
I
Low-Voltage Microcontrollers with ADC
OUT
OUT
P5
N
6
’s current output by reading the port
6
A
R
P5
Y
6
T
OUT
1
2
by setting TMR bits D
as T
IN
. T
T
OUT
IN
is used in
7
41