Specifications

dLAN 200 AVmodule 6400
3
devolo AG
Charlottenburger Allee 60 Tel.: [phone] www.devolo.com
D-52068 Aachen Fax: [phone] [e-mail]
1 Integration of the dLAN 200
AVmodule 6400 into Existing
Products
HomePlug devices based on dLAN 200
AVmodule 6400 can have their designs
partitioned into the major sections shown in
figure 2.
The HomePlug add-in consists of two sections:
The dLAN 200 AVmodule 6400 and the
coupling and AC zero-cross detector circuitry.
These two sections suffice to incorporate
HomePlug functionality into an existing
product, such as a router, access point, MP3
player, video extender, or game console. Other
sections of the product should be reviewed to
ensure that the overall operation of the design
meets the considerations detailed in the rest of
this datasheet.
2 Configuration of the dLAN 200
AVmodule 6400
2.1 Host Interface Mode Selection
The host interface for the dLAN 200 AVmodule
6400 can be configured to any of the following
modes:
• MII PHY mode: In this mode the module
behaves like an Ethernet PHY using a MII
interface. The module can be configured as an
Ethernet PHY to replace an existing Ethernet
PHY on a developed product. In this mode,
configuration and status information is
available using the IEEE 802.3 MDI interface.
• MII HOST/DTE (MAC) mode: In this mode
the module behaves like an Ethernet host/DTE
device using an MII interface. The module can
be configured in MII Host/DTE mode to
connect to any other device that behaves like
an Ethernet PHY. In the MII host/DTE mode,
configuration and status information is
available using the IEEE 802.3 MDI interface.
Host mode is selected through the use of the
HM_SEL strapping at GPIO8. The default
mode without any external straps is MII MAC
mode (1).
HM_SEL Mode
0 MII PHY
1 MII MAC
Table 1: Host mode selection
Table 2 below shows the two module
operations and cases where each digital
interface may be used. Most existing designs
should provide at least one of these interfaces.
Digital
Interface
Operation
Possible Use
PHY Mode  Router or Switch, the dLAN
200 AVmodule 6400
connects to an MII port on a
Fig. 2: Enabled products general architecture