Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 101
Z8F16800144ZCOG
Manufacturer Part Number
Z8F16800144ZCOG
Description
KIT DEV FOR Z8F642 MCU 44 PIN
Manufacturer
Zilog
Series
Z8 Encore!®r
Type
MCUr
Specifications of Z8F16800144ZCOG
Contents
Hardware, Software and Documentation
For Use With/related Products
Z8F642
For Use With
269-4661 - KIT ACC ETHERNET SMART CABLE
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
269-4678
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PS025011-1010
Caution:
Low-Power Modes
When Timer uses peripheral clock and Timer is enabled, any read from TxH or TxL is not
recommended, results may be unpredictable, disable Timer first, then read it. If
timer work in capture, capture/compare, capture restart or demodulation mode, any read
from TxPWM0H, TxPWM0L, TxPWM1H, TxPWM1L, or TxSTAT must be done after
capture interrupt occurs, or results may be unpredicatable. INPCAP bit of Timer
Control 0 register is the same as these PWM registers. When Timer uses main clock,
you can write/read all Timer registers at any time.
Operation in HALT Mode
When the eZ8 CPU enters HALT mode, the timer will continue to operate if enabled. To
minimize current in HALT mode, the timer can be disabled by clearing the TEN control
bit. The noise filter, if enabled, will also continue to operate in HALT mode and rejects
any noise on the timer input pin.
Operation in STOP Mode
When the eZ8 CPU enters STOP mode, the timer continues to operate if enabled and
peripheral clock is chosen as the clock source. In STOP Mode, the timer interrupt (if
enabled) automatically initiates a Stop Mode Recovery and generates an interrupt request.
In the Reset Status Register, the stop bit is set to 1. Also, timer interrupt request bit in
Interrupt Request 0 register is set. Following completion of the Stop Mode Recovery, if
interrupts are enabled, the CPU responds to the interrupt request by fetching the timer
interrupt vector. The noise filter, if enabled, will also continue to operate in STOP Mode
and rejects any noise on the timer input pin.
If system clock is chosen as the clock source, the timer ceases to operate as a
system clock and is put into STOP Mode. In this case the registers are not reset and
operation will resume once Stop Mode Recovery occurs.
Power Reduction During Operation
Removal of the
can still read/write registers when the enable bit(s) are taken out.
When timer is operating on a peripheral clock, the timer clock is asynchronous
to the CPU clock. To ensure error-free operation, disable the timer before
modifying its operation (include changing the timer clock source). So any write to the
timer control registers can not be done when timer is enabled and peripheral clock
is used.
TEN
bit will inhibit clocking of the entire timer block. The CPU
P R E L I M I N A R Y
Z8 Encore! XP
Product Specification
®
F1680 Series
Timers
87
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