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 RCM3000
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 RCM3000. 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
RCM3000.
The Prototyping Board provides the user with RCM3000 connection points brought out con-
veniently 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.
J2
J4
GND
GND
VBAT_EXT
/RESET_IN
SMODE0
/IOWR
PG5
PG7
PE1
PE4
PE6
PF7
PF5
PB7
PB5
PB3
PB0
n.c.
+3.3V
VRAM
SMODE1
/IORD
PG4
PG6
PE0
PE3
PE5
PE7
PF6
PF4
PB6
PB4
PB2
/RES
PD1
PD7
PD3
PD5
PG3
PG1
PC7
PC5
PC3
PC1
PF0
PF2
PA0
PA2
PA4
PA6
STATUS
PD0
PD6
PD2
PD4
PG2
PG0
PC6
PC4
PC2
PC0
PF1
PF3
PA1
PA3
PA5
PA7
GND
n.c. = not connected
Figure B-4. RCM30/31/32XX Prototyping Board Pinout
(Top View)
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
67
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