DM9000BEP DAVICOM [Davicom Semiconductor, Inc.], DM9000BEP Datasheet - Page 11

• Manufacturer Part Number: DM9000BEP
• Description: Ethernet Controller With General Processor Interface
• Manufacturer: DAVICOM [Davicom Semiconductor, Inc.]

5.2 EEPROM Interface
5.3 Clock Interface
5.4 LED Interface
5.5 10/100 PHY/Fiber
Final
Version: DM9000B-13-DS-F02
June 4, 2009
28,29,31
Pin No.
Pin No.
Pin No.
Pin No.
19
20
21
43
44
39
38
46
48
1
2
9
GP3,GP2,GP1
RXVDD18
TXVDD18
Pin Name
Pin Name
Pin Name
Pin Name
BGGND
BGRES
EEDIO
EECK
EECS
LED1
LED2
SD
X2
X1
I/O,PD IO Data to EEPROM
O,PD
O,PD
Type
Type
Type
Type
I/O
I/O
I/O
I/O
O
P
P
P
I
I
General I/O Ports
Registers GPCR and GPR can program these pins
These pins are input ports at default.
Clock to EEPROM
This pin is also used as the strap pin of the polarity of the INT pin
When this pin is pulled high, the INT pin is low active; otherwise the INT
pin is high active
Chip Select to EEPROM
This pin is also used as a strap pin to define the internal memory data bus
width. When it is pulled high, the memory access bus is 8-bit; Otherwise it
is 16-bit.
Crystal 25MHz Out
Crystal 25MHz In
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.
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
This pin also acts as WAKE defined in EEPROM setting in 16-bit mode.
The LED2 (Link/ACT) function is disabled while the Pin38 supports WOL
function.
Fiber-optic Signal Detect
PECL signal, which indicates whether or not the fiber-optic receive pair is
receiving valid levels
Band gap Ground
Band gap Pin
1.8V power output for TP RX
1.8V power output for TP TX
Ethernet Controller with General Processor Interface
Description
Description
Description
Description
DM9000B
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