Z8F16800144ZCOG Zilog, Z8F16800144ZCOG Datasheet - Page 49

• 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

Reset Sources
Table 9. Reset Sources and Resulting Reset Type
PS025011-1010
Operating Mode
NORMAL or 
HALT mode
STOP mode
Power-On Reset
0002H
begins at the Reset vector address.
Because the control registers are reinitialized by a System Reset, the system clock after
reset is always the 11 MHz IPO. User software must reconfigure the oscillator control
block such that the correct system clock source is enabled and selected.
Table 9
Each device in the Z8 Encore! XP F1680 Series contains an internal Power-On Reset
(POR) circuit. The POR circuit monitors the supply voltage and holds the whole device in
the Reset state until the supply voltage reaches a safe circuit operating level when the
device is powered on.
Reset Source
Power-On Reset
Voltage Brownout
Watchdog Timer timeout
when configured for Reset
RESET pin assertion
On-Chip Debugger initiated Reset
(OCDCTL[0] set to 1)
Power-On Reset
Voltage Brownout
RESET pin assertion
DBG pin driven Low
and
lists the possible sources of a System Reset.
0003H
and loads that value into the Program Counter. Program execution
P R E L I M I N A R Y
Special Conditions
Reset delay begins after supply voltage
All reset pulses less than three system clocks
Reset delay begins after supply voltage
Reset delay begins after supply voltage
All reset pulses less than the specified analog
Reset delay begins after supply voltage
exceeds POR level
exceeds VBO level
None
in width are ignored, see
Characteristics
System Reset, except the OCD 
is unaffected by reset
exceeds POR level
exceeds VBO level
delay is ignored, see
on page 339
None
Reset, Stop Mode Recovery, and Low-Voltage
Z8 Encore! XP
on page 339
Electrical Characteristics
Product Specification
Electrical
®
F1680 Series
35