ZiLOG Z8 User Manual page 5

ZiLOG
Chapter Title and Subsection
Comparator Description ..................................................................................................... 5-26
Comparator Programming ................................................................................................. 5-28
Comparator Operation ....................................................................................................... 5-29
Interrupts ............................................................................................................................ 5-29
Comparator Definitions ...................................................................................................... 5-29
RUN Mode ......................................................................................................................... 5-29
HALT Mode ........................................................................................................................ 5-29
STOP Mode ....................................................................................................................... 5-29
Open-Drain Configuration ......................................................................................................... 5-30
Low EMI Emission .................................................................................................................... 5-30
Input Protection ........................................................................................................................ 5-31
CMOS Z8 Auto Latches ............................................................................................................ 5-32
Chapter 6. Counter/Timers
Introduction ................................................................................................................................. 6-1
Prescalers and Counter/Timers .................................................................................................. 6-2
Counter/Timer Operation ............................................................................................................ 6-3
Load and Enable Count Bits ................................................................................................ 6-3
Prescaler Operations ........................................................................................................... 6-4
T Modes ............................................................................................................................... 6-5
OUT
T Modes ................................................................................................................................... 6-7
IN
External Clock Input Mode ................................................................................................... 6-8
Gated Internal Clock Mode .................................................................................................. 6-9
Triggered Input Mode ......................................................................................................... 6-10
Retriggerable Input Mode .................................................................................................. 6-11
Cascading Counter/Timers ....................................................................................................... 6-11
Reset Conditions ...................................................................................................................... 6-12
Chapter 7. Interrupts
Introduction ................................................................................................................................. 7-1
Interrupt Sources ........................................................................................................................ 7-2
External Interrupt Sources ................................................................................................... 7-2
Internal Interrupt Sources .................................................................................................... 7-3
Interrupt Request (IRQ) Register Logic and Timing ................................................................... 7-4
Interrupt Initialization .................................................................................................................. 7-5
Interrupt Priority Register (IPR) Initialization ........................................................................ 7-5
Interrupt Mask Register (IMR) Initialization .......................................................................... 7-6
Interrupt Request (IRQ) Register Initialization ..................................................................... 7-7
IRQ Software Interrupt Generation ............................................................................................. 7-9
Chapter 7. Interrupts
UM001601-0803
(Continued)
Z8 Microcontrollers
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