User`s manual

BL4S100 User’s Manual 17
3. SUBSYSTEMS
Chapter 3 describes the principal subsystems for the BL4S100.
•Digital I/O
• Serial Communication
• A/D Converter Inputs
• Memory
Figure 4 shows these Rabbit-based subsystems designed into the BL4S100.
Figure 4. BL4S100 Subsystems
BL4S100
RABBIT
®
4000
RS-232
Digital
Inputs
Digital
Outputs
Programming
Port
Ethernet
A/D
Converter
Fast SRAM
(program)
Serial
Flash
Data
SRAM
RABBIT
®
RIO
ZigBee PRO
(802.15.4)
optional
Real-Time
Clock
Main
Clock