Z87100 Datasheet, PDF (32/48 Pages) Zilog, Inc. – Wireless Transmitter

Z87100
Wireless Transmitter
FUNCTIONAL DESCRIPTION (Continued)
Z87100 Mask Options. The following summarizes the
mask options to be selected by the customer at the time of
ROM code submittal:
RC/TMBASE
Zilog
Determine whether "cold start" Initialization: uses RC or
TMBASE as base clock.
ROM Protect
On/Off:
Selects ROM protect.
Clear
CLK
18 Clock RESET
Generator
RESET
WDT Select
(WDTMR) D1-D0
CLK Select
(WDTMR) D4
RC7
WDT TAP SELECT
WDT
OSC
5 ms Recovery 5 ms 15 ms 25 ms 100 ms
M
U
X
CLK
WDT/Recovery Counter Chain
CLR
Internal
RESET
VCC
+
2V REF
-
WDT
1
From
12 ns
Stop Mode
Glitch
0
Recovery Source
Filter
Stop Delay Select (SMR D5)
TMBASE
Power-On Recovery
Time Base Counter
(.25s, 1s, 1 min, 1 hr)
Figure 24. Timing Recovery Circuit (POR, WDT)
3-32
PRELIMINARY
DS96WRL0700