max2986cxv Maxim Integrated Products, Inc., max2986cxv Datasheet - Page 16

• Manufacturer Part Number: max2986cxv
• Description: Integrated Powerline Digital Transceiver Integrated Products
• Manufacturer: Maxim Integrated Products, Inc.

Integrated Powerline Digital Transceiver
The MIIMDIO pin is a bidirectional data pin for the man-
agement data interface. The MIIMDC signal is a clock
reference for the MIIMDIO signal. The write behavior of
the management data unit is illustrated in Figure 16.
The read behavior of the management data unit is illus-
trated in Figure 17.
Figure 16. Write Behavior of the Management Data Unit
Figure 17. Read Behavior of the Management Data Unit
Table 9. Upper Layer Interface-Selection
Pin Settings
16
INTERFACE
MIIMDIO
MIIMDIO
______________________________________________________________________________________
MIIMDC
MIIMDC
rMII
MII
GPIO[3]
1
1
Management Data Unit
PREAMBLE
PREAMBLE
OPTIONAL
OPTIONAL
32-BIT
32-BIT
GPIO[6]
0
0
START
WRITE
START
READ
GPIO[4]
0
1
MDU
PHYSICAL
PHYSICAL
ADDRESS
ADDRESS
5-BIT
5-BIT
The upper layer interface can be selected according to
the pin settings shown in Table 9.
REGISTER
ADDRESS
REGISTER
ADDRESS
5-BIT
5-BIT
FROM
HOST
HOST
TO
TA
TA
FROM HOST
FROM HOST
16-BIT OF
16-BIT OF
DATA
DATA
Ethernet Interface