DM9010BI
Industrial-temperature Single Chip Ethernet Controller with General Processor Interface
5.3 EEPROM Interface
64
EEDI
65
EEDO
I
Data from EEPROM
66
67
EECK
EECS
O,PD Data to EEPROM
This pin is also used as a strap pin. It combines with strap pin WOL, and it
can set the data width of the internal memory access
The decoder table is the following, where the logic 1 means the strap pin
is pulled high
WAKE
EEDO data width
0
0
16-bit
0
1
32-bit
1
0
8-bit
1
1
reserved
O,PD Clock to EEPROM
O,PD Chip Select to EEPROM
This pin is also used as a strap pin to define the LED modes.
When it is pulled high, the LED mode is mode 1; Otherwise it is mode 0
Note: The pins EECS, EECK and EEDO are all have a pulled down resistor about 60 k ohms internally
5.4 Clock Interface
21
X2_25M
22
59
X1_25M
CLK20MO
O
I
Crystal 25MHz Out
Crystal 25MHz In
I/O,PD 20Mhz Clock Output
It is used as the clock signal for the external MII device’s clock is 20MHz
This pin has a pulled down resistor about 60k ohm internally.
When pin TEST5 state is high, this pin acts as the system clock.
5.5 LED Interface
60
SPLED
O
61
FDLED
O
62
LKLED
O
Speed LED
Its low output indicates that the internal PHY is operated in 100M/S, or it
is floating for the 10M mode of the internal PHY
Full-duplex LED
In LED mode 1, Its low output indicates that the internal PHY is operated
in full-duplex mode, or it is floating for the half-duplex mode of the internal
PHY
In LED mode 0, Its low output indicates that the internal PHY is operated
in 10M mode, or it is floating for the 100M mode of the internal PHY
Link / Active LED
In LED mode 1, it is the combined LED of link and carrier sense signal of
the internal PHY
In LED mode 0, it is the LED of the carrier sense signal of the internal
PHY only
Preliminary
Version: DM9010BI--DS-P01
January 12, 2010
11
DAVICOM [ DAVICOM SEMICONDUCTOR, INC. ]
