参数资料
型号: XRP7714EVB-DEMO-2P-KIT
厂商: Exar Corporation
文件页数: 4/11页
文件大小: 0K
描述: DEV KIT FOR XRP7714
标准包装: 1
主要目的: DC/DC,LDO 步降
输出及类型: 4,非隔离
输出电压: 0.9 ~ 5.1 V
输入电压: 5.5 V ~ 25 V
稳压器拓扑结构: 降压
频率 - 开关: 300kHz ~ 1.5MHz
板类型: 完全填充
已供物品: 2 个板,线缆,带软件的闪存驱动器
已用 IC / 零件: XRP7714
其它名称: 1016-1609
X R P 7 7 X X E V B - X C M
X R P 7 7 X X C o n f i g u r a t i o n M o d u l e
the designer’s system board. This operation
allows writes/reads to either the shadow
registers or Non-Volatile Memory of the
supported device
? XCM receives commands from the GUI
(over USB), and translates them via I 2 C if
the ENABLE pin is logic HIGH.
? The GUI has the option to write a given
configuration to NVM or Shadow Registers
of the supported device.
Flashes based upon the I C activity between
Figure 4: XCM LED Indicators
DS5: I2C Activity
2
the XCM and the XRP77XX.
DS3: USB Power
There is a fifth LED just to the right of the USB
connector, which will be on permanently as
long as USB power is applied to the XCM.
DS6: 3.3V Power
The sixth LED is in the upper right hand
corner. This indicates the LDO is generating
3.3V and the uC is powered.
OPERATING THE XCM
Here are the two basic operating modes of the
XCM.
? Pass Through Mode: The XCM is getting its
power from the USB, and the
PowerArchitect TM GUI is operational. In this
mode, the “USB Operating” LED DS3 will be
on.
? Standalone Mode: The XCM is getting its
power from VIN of the Customer Board; the
GUI is not operational. In this mode, the
XCM acts as a boot loader to the supported
device.
P ASS T HROUGH M ODE
When in USB Mode, the XCM supports pass-
thru mode from the PC running
PowerArchitect TM to the supported device on
? XCM also supports reads from the
supported device shadow and NVM registers
for display in PowerArchitect TM .
S TANDALONE M ODE
UPDATE: Since the XRP7724 is Flash memory
based, this mode is not required nor supported
for the XRP7724.
The XCM allows the GUI to save a
configuration into Flash on the XCM. In order
to enable the boot loader functionality, the
“Reconfig Mode” box must be checked. When
there is a stored configuration on the XCM
flash, the GUI will indicate the presence of
that information in the “Graphic of Bytes” box.
To store a configuration to the XCM, click the
“Same to Module” button.
Figure 5: XCM Loaded for Standalone Mode
? 2012 Exar Corporation
4/11
Rev. 1.3.1
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