Z86D86 Datasheet, PDF (62/80 Pages) Zilog, Inc. – 28-Pin Low-Voltage OTP Microcontroller

Z86D86
28-Pin Low-Voltage OTP Microcontroller
54
Output Circuit
Figure 43 shows the output circuit.
P34_INTERNAL
MUX
P34
T16_OUT
CTR1 D2
T8_OUT
MUX
CTR1 D3
CTR0 D0
P36_INTERNAL
AND/OR/NOR/NAND
Logic
MUX
P36
CTR1 D5, D4
P35_INTERNAL
CTR1 D6
MUX
P35
Figure 43. Output Circuit
CTR2 D0
Interrupts
The Z86D86 features six different interrupts. The interrupts are maskable and pri-
oritized, as shown in Figure 44. The six sources are divided as follows: three
sources are claimed by Port 3 lines P33–P31, two by the counter/timers, and one
by LBD (seeTable 21). The Interrupt Mask Register, globally or individually,
enables or disables the six interrupt requests.
PS008905-0105
PRELIMINARY