Z86E3016PSG Datasheet, PDF (77/348 Pages) Zilog, Inc. – Z86E3016PSG

Z8 CPU
User Manual
59
when the clock is provided with an RC/LC clock. See the device product
specification for timing details.
POR (cold start) will always reset the Z8^® CPU control and port registers
to their default condition. If a Z8 has a SMR register, the warm start bit
will be reset to a 0 to indicate POR.
VBO
WDT
POR
(Cold Start)
P27
(Stop Mode)
INT OSC
Delay Line
T_POR ms
XTAL OSC
18 CLK
Reset Filter
Figure 27. Example of Z8 with Simple SMR and POR
Chip
Reset
UM001602-0904
Watch–Dog Timer