Rabbit RabbitCore RCM5400W, User Manual, Page: 104 / 120

98 RabbitCore RCM5400W
All signals from the RCM5400W module are available on header J2 of the Prototyping
Board. The remaining ports on the Rabbit 5000 microprocessor are used for RS-232 serial
communication. Table B-2 lists the signals on header J2 as configured by the
brdInit()
function call where applicable, and explains how they are used on the Prototyping Board.
There is a 1.3" × 2" through-hole prototyping space available on the Prototyping Board.
The holes in the prototyping area are spaced at 0.1" (2.5 mm). +3.3 V, +5 V, and GND traces
run along the top edge of the prototyping area for easy access. Small to medium circuits
can be prototyped using point-to-point wiring with 20 to 30 AWG wire between the proto-
typing area, the +3.3 V, +5 V, and GND traces, and the surrounding area where surface-
mount components may be installed. Small holes are provided around the surface-mounted
components that may be installed around the prototyping area.
Table B-2. Use of RCM5400W Signals on the Prototyping Board
Pin Pin Name Prototyping Board Use
1 +3.3 V +3.3 V power supply
2 GND
3 /RST_OUT Reset output from reset generator
4 /IORD External read strobe
5 /IOWR External write strobe
6 /RESET_IN Input to reset generator
8–15 PA0–PA7 Output, low
16 PB0 Serial flash SCLK
17 PB1 Output, high (programming port CLKA)
18 PB2 LED DS2 (output normally high/off)
19 PB3 LED DS3 (output normally high/off)
20 PB4 Switch S2 (input normally open/pulled up)
21 PB5 Switch S3 (input normally open/pulled up)
22–23 PB6–PB7 Output, high
24–25 PC0–PC1 Serial Port D (RS-232, header J4) (high)
26–27 PC2–PC3 Serial Port C (RS-232, header J4) (high)
28–29 PC4–PC5 Serial Port B (used by serial flash on RCM5400W)
30–31 PC6–PC7 Serial Port A (programming port) (high)
32–36 PE0–PE4 Output, high
37–38 PE5–PE6 Not available
39 PE7 Output, pulled high
48–49 N/A Not available
50 GND