User`s manual

User’s Manual 23
4. HARDWARE REFERENCE
Chapter 4 describes the principal subsystems for the RCM2000.
4.1 RCM2000 Digital Inputs and Outputs
Figure 4 shows the subsystems designed into the RCM2000.
Figure 4. Rabbit Subsystems
RCM2000
Port A
Port B
Port D
Port E
PA0PA7
PB0
PB5
PB6
PB7
4x CMOS
synchronous/
asynchronous
PE0PE7
PD0PD7
A0A12
IORD
IOWR
BUFEN
DA0DA7
PCLK
RESET
WDO
Data Lines
Address Lines
Misc. Outputs
I/O Control
Watchdog
7 Timers
Clock Doubler
Slave Port
Real-Time Clock
RAM
Backup Battery
Support
Flash
Serial Ports
(Port C)
Programming
Port