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
April 2016
Rev. 1.0.0
Exar Corporation
www.exar.com
48720 Kato Road, Fremont CA 94538, USA
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
GENERAL DESCRIPTION
The XR77XXEVB-XCM-V80 (Exar Configuration
Module or XCM) is a board that is designed to
act as a USB to I
2
C bridge for communication
between a PC running PowerArchitect
TM
4
configuration and design software and one of
Exar’s Universal PMICs. The PMIC can either
be on an Exar evaluation board or on a
customer board. On the right opposite side of
the XCM is a 10-pin connector which is used to
connect to the user’s system board in order to
communicate to any of the supported PMICs.
The XCM includes a µC with on-board flash so
that when powered from the system board, it
can act as a boot loader without the need to
have a PC connected.
This board is compatible with: XR77103,
XRP7704, XRP7708, XRP7740, XRP7713, and
XRP7714.
E
E
V
V
A
A
L
L
U
U
A
A
T
T
I
I
O
O
N
N
B
B
O
O
A
A
R
R
D
D
M
M
A
A
N
N
U
U
A
A
L
L
FEATURES
•
USB to I
2
C Communication for
Programmable PMIC Devices
•
Boot Loader Functionality
−
Avoids programming the NVM until final
configuration known
•
Powered by USB or System Board
•
Enables Rapid Prototyping
EVALUATION BOARD SCHEMATICS
Figure 1: XR77XXEVB-XCM-V80 Evaluation Board Schematics
