Z86D99 ZILOG [Zilog, Inc.], Z86D99 Datasheet - Page 52

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

PS003807-1002
reload and restart counting. Interrupt request IRQ
count.
T8 and T16 Timer Operation
The T8 timer is a programmable 8-bit counter/timer with two 8-bit capture regis-
ters and two 8-bit load registers. The T16 timer is a programmable 16-bit counter/
timer with one 16-bit capture register pair and one 16-bit load register pair. See
Figure 33. The T8 and T16 counters/timers have two modes of operation:
•
•
The transmit mode is used to generate complex waveforms. There are two
submodes:
–
–
The demodulation mode is used to capture and demodulate complex
waveforms.
The normal mode can be used in single-pass or modulo-N (repeating)
mode.
The ping-pong mode is used when the T8 timer counts down, enables the
T16 timer that counts down, enabling T8, and so on, until the mode is
disabled.
P
R
E
L
I
M
Z86D990/Z86D991 OTP and Z86L99X ROM
I
Low-Voltage Microcontrollers with ADC
N
A
R
5
is generated on every end-of-
Y
45