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I/O Explorer™ USB Reference Manual
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page
13
of
16
RC00
U1-RC0/A8
JB-01
RC01
U1-RC1/A9
JB-02
RC02
U1-RC2/A10
JB-03
RC03
U1-RC3/A11/T3
JB-04
RC04
U1-RC4/A12/OC3C
JB-07
RC05
U1-RC5/A13/OC3B
JB-08
RC06
U1-RC6/A14/OC3A
JB-09
RC07
U1-RC7/A15/ICP3
JB-10
RD00
U1-PD0/SCL/INT0
J12-1,J12-2
I2C bus SCL
RD01
U1-PD1/SDA/INT1
J12-3,J12-4
I2C bus SDA
RD02
U1-PD2/RXD1
JG-03
RD03
U1-PD3/TXD1
JG-04
RD04
U1-PD4/ICP1
JG-02
RD05
U1-PD5/XCK1
JG-01
RD06
BTWI-SCL
J11-01
Private I2C bus SCL
RD07
BTWI-SDA
J11-02
Private I2C bus SDA
RE00
U1-PE0/WR
JC-01
RE01
U1-PE1/RD
JC-02
RE02
U1-PE2/ALE
JC-03
RE03
U1-PE3/UID
JC-04
RE04
U1-PE4/TOSC1/INT4
JC-07
RE05
U1-PE5/TOSC2/INT5
JC-08
RE06
U1-PE6/AIN0/INT6
JC-09
RE07
U1-PE7/AIN1/INT7
JC-10
RF00
U1-PF1/ADC0
JF-01,J1-01
DAIO Port 0, ch 0
RF01
U1-PF2/ADC1
JF-02, J1-03
DAIO port 0, ch 1
RF02
LINK
N/A
USB Link LED
RF03
PWR_ON
N/A
Main power supply on/off control
RF04
U1-PF4/ADC4/TCK
JE-01
RF05
U1-PF5/ADC5/TMS
JE-02
RF07
U1-PF6/ADC6/TDO
JE-03
RF07
U1-PF7/ADC7/TDI
JE-04
14.2 IC2, ATmega165P Port Connections
MCU
Port Bit
Signal
Connector
Pin
Notes
RA00
U2-PA0
N/A
DIP Switch 1, DGIO port 0, chan 3
RA01
U2-PA1
N/A
DIP Switch 2, DGIO port 0, chan 3
RA02
U2-PA2
N/A
DIP Switch 3, DGIO port 0, chan 3
RA03
U2-PA3
N/A
DIP Switch 4, DGIO port 0, chan 3
RA04
U2-PA4
N/A
Push button BTN0, DGIO port 0, chan 2
RA05
U2-PA5
N/A
Push button BTN1, DGIO port 0, chan 2
RA06
U2-PA6
N/A
Push button BTN2, DGIO port 0, chan 2
RA07
U2-PA7
N/A
Push button BTN3, DGIO port 0, chan 2