The digital I/O connector J2 provides external connections for all GPIOs. The pinout of the connector is
shown below in Table 3, with details of the pin functions.
Pin #
Pin Description
J2-1
J2-2
J2-3
J2-4
J2-5
T1/SIN/SCL0/PLAI[0]
J2-6
SOUT/SDA0/PLAI[1]
J2-7
RTS/SCL1/PLAI[2]
J2-8
CTS/SDA1/PLAI[3]
J2-9
IRQ2/RI/CLK/PLAI[4]
J2-10
IRQ3/DCD/MISO/PLAI[5]
J2-11
J2-12
J2-13
DSR/MOSI/PLAI[6]
J2-14
DTR/CSL/PLAO[0]
J2-15
PWM
J2-16
PWM
Rev. 1.0
ADuC7024 Evaluation Board Reference Guide
P4.5
PLAO[13]
P4.4
PLAO[12]
P4.3
PLAO[11]
P4.2
PLAO[10]
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P4.1
PLAO[9]
P4.0
PLAO[8]
P1.6
P1.7
P3.7
/PLAI[15]
SYNC
P3.6
/PLAI[14]
TRIP
Table 3: Pin functions for digital I/O connector J2
Pin #
J2-17
J2-18
J2-19
J2-20
J2-21
J2-22
J2-23
J2-24
J2-25
J2-26
J2-27
J2-5
J2-28
J2-30
J2-31
J2-32
Page 9 of 15
(4) External Junctions (Connectors)
Pin Description
P0.7
ECLK/XCLK/SIN/PLAO[4]
P2.0
/SOUT/PLAO[5]
CONV
START
P0.5
IRQ1/ADC
/PLAO[2]
BUSY
P0.4
IRQ0/PWM
/PLAO[1]
TRIP
P3.5
PWM2
/PLAI[13]
L
P3.4
PWM2
/PLAI[12]
H
P0.3
TRST/ADC
BUSY
P3.3
PWM1
/PLAI[11]
L
P3.2
PWM1
/PLAI[10]
H
P3.1
PWM0
/PLAI[9]
L
P3.0
PWM0
/PLAI[8]
H
P0.6
T1/MRST/PLAO[3]
P0.0
CMP/PLAI[7]
P4.7
PLAO[15]
P4.6
PLAO[14]
DGND
Analog Devices Inc., MicroConverter
www.analog.com/microconverter
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