ZM7304G-65503Y-Q1 POWER-ONE [Power-One], ZM7304G-65503Y-Q1 Datasheet - Page 8

• Manufacturer Part Number: ZM7304G-65503Y-Q1
• Description: Digital Power Manager
• Manufacturer: POWER-ONE [Power-One]

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The ZM7300 series DPMs perform translation between the I
Graphical User Interface and the SD communication bus connected to Z-series POL converters. In addition,
DPMs carry out programming, monitoring, data storage, POL group management, hot-swap control, protection,
and control and monitoring of auxiliary devices.
The DPMs can be controlled via the GUI or directly via the I
“DPM Programming Manual”.
10.1
The DPM memory consists of RAM and non-volatile memory (Flash).
operations and manipulation of the various blocks of configuration, setup, status, and monitoring registers. The
non-volatile memory is used to store programming and configuration data. The DPM memory includes DPM
registers, POL setup registers, monitoring data, and user memory as shown in Figure 4. Setup registers for the
DPM and the POL converters are protected by CRCs that are checked during programming of POL converters
and at the power-up of the DPM.
The LCK_N pin and the write protection register WP limit the write access to the memory blocks in the DPM and
POL converters. The WP register content is defaulted to write protect upon powering up the DPM.
10.1.1 Write Protection
There are hardware-based and software-based memory write protections.
precedence over the software protection.
REV. 3.3 NOV 26, 2007
Description
DPM Memory
Figure 4. DPM Memory and Write Protection
www.power-one.com
ZM7300G Series Digital Power Manager
2
C bus by using specific commands described in the
2
C interface connected to a host system or the
The RAM is used for programming
The hardware protection takes
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Data Sheet