Z87100 Datasheet, PDF (2/48 Pages) Zilog, Inc. – Wireless Transmitter

Z87100
Wireless Transmitter
GENERAL DESCRIPTION (Continued)
with an external modulator and RF section to form a com-
plete wireless spread spectrum transmitter.
The device's many applications demand powerful I/O ca-
pabilities. The Wireless Controller fulfills this with 12 pins
dedicated to input and output. These lines are grouped into
two ports, and are configurable under software control to
provide timing, status signals, or parallel I/O.
Three basic address spaces are available to support this
wide range of configurations; Program Memory, Register
Zilog
File, and Expanded Register File. The Register File is
composed of 124 bytes of General-Purpose Registers, two
I/O Port registers and fifteen Control and Status registers.
The Expanded Register File consists of two port registers,
four control registers and six PN modulator registers.
With powerful peripheral features such as on-board com-
parators, counter/timers, Watch-Dog Timer, and PN mod-
ulator, the Z87100 meets the needs for most sophisticated
wireless and low-power controller applications (Figure 1).
Output Input
VCC
GND
TMBASE
RC
Time Base
Generator
Port 3
Counter/
Timers (2)
Interrupt
Control
Analog
Comparator
PN
Modulator
ALU
FLAG
Register
Pointer
Register File
144 x 8-Bit
Machine Timing &
Instruction Control
WDT, POR
Prg. Memory
1024 x 8-Bit
Program
Counter
Port 2
I/O
(Bit Programmable)
Figure 1. Functional Block Diagram
3-2
PRELIMINARY
DS96WRL0700