User’s Manual
25
Figure 8 shows the use of the Rabbit 4000 microprocessor ports in the RCM4510W modules.
Figure 8. Use of Rabbit 4000 Ports
The ports on the Rabbit 4000 microprocessor used in the RCM4510W are configurable, and so
the factory defaults can be reconfigured. Table 2 lists the Rabbit 4000 factory defaults and the
alternate configurations.
R
ABBIT®
4000
Port A
Port B
Port D
(RCM4510W only)
Port E
PA0PA7
PB0
PB2PB7
PE0PE7
PD0PD7
Watchdog
11 Timers
Clock Doubler
Slave Port
Real-Time Clock
RAM
Backup Battery
Support
Flash
Misc. I/O
PC4, RxD+
PC5, TxD
Port C
(Serial Ports C & D)
Programming
Port
(Serial Port A)
ZigBee Modem
(Serial Port B)
PB1, PC6, STATUS
PC0, PC2
PC1, PC3
Serial Ports E & F
/RESET_OUT,
/IORD
/IOWR
/RES_IN
PC7, /RES,
SMODE0, SMODE1