Using The Prototyping Board - Rabbit RabbitCore RCM3209 User Manual

B.4 Using the Prototyping Board
The Prototyping Board is actually both a demonstration board and a prototyping board. As
a demonstration board, it can be used to demonstrate the functionality of the RCM3209/
RCM3229 right out of the box without any modifications to either board. There are no
jumpers or dip switches to configure or misconfigure on the Prototyping Board so that the
initial setup is very straightforward.
The Prototyping Board comes with the basic components necessary to demonstrate the
operation of the RCM3209/RCM3229. Two LEDs (DS1 and DS2) are connected to PG6
and PG7, and two switches (S2 and S3) are connected to PG1 and PG0 to demonstrate the
interface to the Rabbit 3000 microprocessor. Reset switch S1 is the hardware reset for the
RCM3209/RCM3229.
The Prototyping Board provides the user with RCM3209/RCM3229 connection points
brought out conveniently to labeled points at headers J2 and J4 on the Prototyping Board.
Small to medium circuits can be prototyped using point-to-point wiring with 20 to 30 AWG
wire between the prototyping area and the holes at locations J2 and J4. The holes are spaced
at 0.1" (2.5 mm), and 40-pin headers or sockets may be installed at J2 and J4. The pinouts
for locations J2 and J4, which correspond to headers J1 and J2, are shown in Figure B-4.
VBAT_EXT
/RESET_IN
SMODE0
The small holes are also provided for surface-mounted components that may be installed
around the prototyping area.
There is a 2.0" × 3.5" through-hole prototyping space available on the Prototyping Board.
+3.3 V, +5 V, and GND traces run along the edge of the Prototyping Board for easy access.
User's Manual
J2
GND
n.c.
GND
+3.3V
VRAM
SMODE1
/IORD
/IOWR
PG4
PG5
PG6
PG7
PE0
PE1
PE3
PE4
PE5
PE6
PE7
PF7
PF6
PF5
PF4
PB7
PB6
PB5 PB4
PB3
PB2
PB0 /RES
n.c. = not connected
Figure B-4. Prototyping Board Pinout
(Top View)
J4
PD1 PD0
PD7 PD6
PD3 PD2
PD4
PD5
PG3 PG2
PG0
PG1
PC7 PC6
PC4
PC5
PC3 PC2
PC0
PC1
PF0 PF1
PF3
PF2
PA0 PA1
PA2 PA3
PA4 PA5
PA6 PA7
STATUS GND
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