X
X
R
R
7
7
7
7
X
X
X
X
E
E
V
V
B
B
-
-
X
X
C
C
M
M
-
-
V
V
8
8
0
0
X
X
R
R
7
7
7
7
X
X
X
X
C
C
o
o
n
n
f
f
i
i
g
g
u
u
r
r
a
a
t
t
i
i
o
o
n
n
M
M
o
o
d
d
u
u
l
l
e
e
© 2016 Exar Corporation
2/9
Rev. 1.0.0
PIN ASSIGNMENT
Figure 2: XR77XXEVB-XCM-V80 JP4 Pin Assignment
PIN DESCRIPTION
Name
Pin Number
Description
SCL
JP4 PIN1
I2C Clock
GND
JP4 PIN2
Ground
SDA
JP4 PIN3
I2C Data
Sig_2
JP4 PIN4
General purpose signal 2
I
2
C Power
JP4 PIN5
Connect to the preferred IO voltage. Only required when a voltage other than 3.3V is
desired.
Sig_1
JP4 PIN6
General purpose signal 1
GND
JP4 PIN7
Ground
GND
JP4 PIN8
Ground
ENABLE
JP4 PIN9
Connects to the EN pin of the XRP77XX. This is an input to the XCM board.
VIN
JP4 PIN10
Can connect to voltages from 4.5V to 30V
ORDERING INFORMATION
Part Number
Description
XR77XXEVB-XCM-V80
Exar Configuration Module for Power Architect 4 Support
