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RabbitCore RCM3305/RCM3315
4.1 RCM3305/RCM3315 Digital Inputs and Outputs
Figure 5 shows the RCM3305/RCM3315 pinouts for headers J3 and J4.
Figure 5. RCM3305/RCM3315 Pinouts
The pinouts for the RCM3000, RCM3100, RCM3200, RCM3305/RCM3315, RCM3360/
RCM3370, and RCM3365/RCM3375 are almost compatible, except signals PB0, PC4, and PC5.
PB0, PC4, and PC5 are used for the SPI interface to the serial flash on the RCM3305 and the
RCM3315. Visit the Web site for further information.
Headers J3 and J4 are
standard 2 × 34 headers with a nominal 2 mm pitch. An RJ-45 Ether-
net port is also included with the RCM3305/RCM3315.
Pins 29–32 on header J3 are configured using 0
Ω
resistors at locations JP4, JP5, JP6, and
JP7 to be PD2, PD3, PD6, and PD7 respectively. They may also be reconfigured to carry
the Ethernet signals TPI+, TPI–, TPO+, and TPO–.
Pins 33 and 34 on header J3 are wired to carry the
LINK
and
ACT
signals that illuminated
the corresponding LEDs on the RCM3305/RCM3315 module. These signals may be “dis-
connected” by removing 0
Ω
surface-mount resistors R41 and R42.
See Appendix A.5 for more information about the locations of these surface-mount
resistors.
Note:
These pinouts are as seen on
the
Bottom Side
of the module.
/RES
PB2
PB4
PB6
PF4
PF6
PE7
PE5
PE3
PE0
PG6
PG4
/IORD
SMODE1
VRAM
+3.3 VIN
n.c.
n.c./PB0
PB3
PB5
PB7
PF5
PF7
PE6
PE4
PE1
PG7
PG5
/IOWR
SMODE0
/RESET_IN
VBAT_EXT
GND
GND
J4
STATUS
PA6
PA4
PA2
PA0
PF2
PF0
PC1
PC3
n.c./PC5
PC7-RxA
PG1
PG3
PD5
PD3/TPO+
PD7/TPI+
ACT/n.c.
GND
PA7
PA5
PA3
PA1
PF3
PF1
PC0
PC2
n.c./PC4
PC6-TxA
PG0
PG2
PD4
PD2/TPO
PD6/TPI
LINK/n.c.
J3
n.c. = not connected
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