User’s Manual
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All signals from the RCM4510W module are available on header J2 of the Prototyping Board.
The remaining ports on the Rabbit 4000 microprocessor are used for RS-232 serial communica-
tion. Table B-2 lists the signals on header J2 and, where applicable, explains how they are config-
ured by the
brdInit()
function call for use 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 prototyping 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 pro-
totyping area.
Table B-2. Use of RCM4510W 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
7
VBAT_EXT External backup battery connection
8–15
PA0–PA7
Output, high
16
PB0
Output, high
17
PB1
Programming port CLKA
18
PB2
LED DS2 (normally high/off)
19
PB3
LED DS3 (normally high/off)
20
PB4
Switch S2 (normally open/pulled up)
21
PB5
Switch S3 (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 XBee RF module)
30–31
PC6–PC7
Serial Port A (programming port) (high)
32–39
PE0–PE7
Output, high
40–47
PD0–PD7
Output, high
48
CONVERT Not available
49
VREF
Not available
50
GND
