User`s manual

User’s Manual 21
4. HARDWARE REFERENCE
Chapter 2 describes the hardware components and principal
hardware subsystems of the RCM2300. Appendix A, “Rabbit-
Core RCM2300 Specifications,” provides complete physical
and electrical specifications.
4.1 RCM2300 Digital Inputs and Outputs
Figure 4 shows the subsystems designed into the RCM2300.
Figure 4. Rabbit Subsystems
R ABBIT
2000
Port A
Port B
(+synch Serial Port B)
Port D
(+Serial Port B)
Port E
PA0PA7
PB0,
PB2PB5
PB7
(PB6)*
PE0PE2,
PE4PE5,
PE7
(PE3, PE6)*
PD3PD5
(PD0PD2,
PD6, PD7)*
A0A3
(A4)*
IORD
IOWR
(BUFEN)*
D0D7
/RESET
Data Lines
Address Lines
I/O Control
Watchdog
7 Timers
Clock Doubler
Slave Port
Real-Time Clock
RAM
Backup Battery
Support
Flash
Port C
(+Serial Ports A, C & D)
Programming
Port
(Serial Port A)
PC6 + 1 more output
PB1, PC7, RES_IN
+ 2 more inputs
PC0, PC2, PC6
PC1, PC3, PC7
Misc. I/O
STATUS
(WDO)*
SMODE0
SMODE1
VBAT
available as a through-hole connection point only,
is not provided on any factory-installed header
*