DM9010EP datasheet(12/62 Pages) DAVICOM

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DM9010

Single Chip Ethernet Controller with General Processor Interface

Preliminary

Version: DM9010-17--DS-P04

Jan. 18, 2006

Open-Drain output and low active.

RST

I,PD

Hardware Reset Command, active high to reset the DM9010

6,7,8,9,10,

11,12,13,

89,88,87,

86,85,84,

83,82

SD0~15

I/O,PD Processor Data Bus bit 0~15

93,94,95,

96,97,98

SA4~9

I,PD Address Bus 4~9

These pins are used to select the DM9010.

When SA9 and SA8 are in high states, and SA7 and AEN are in low

states, and SA6~4 are matched with strap pins TXD2~0, the DM9010 is

selected.

CMD

I,PD Command Type

When high, the access of this command cycle is DATA port

When low, the access of this command cycle is INDEX port

IO16

Word Command Indication

When the access of internal memory is word or Dword width, this pin will

be asserted

This pin is low active at default; its polarity can be modified by EEPROM

setting. See the EEPROM content description for detail

100

INT

O,PD Interrupt Request

This pin is high active at default, its polarity can be modified by EEPROM

setting or strap pin MDC. See the EEPROM content description for detail

56,53,52,

51,50,49,

47,46,45,

44,43,41,

40,39,38

SD16~31 (in

double word

mode)

I/O,PD Processor Data Bus bit 16~31

These pins are used as data bus bits 16~31 when the DM9010 is set to

double word mode (the straps pin EEDO is pulled high and WAKE is not

pull-high)

IO32 (in double

word mode)

O,PD Double Word Command Indication

This pins is used as the double word command indication when the

DM9010 is set to double data word mode, and this pin will be asserted

when the access of internal memory is double word width

This pin is low active at default; its polarity can be modified by EEPROM

setting. See the EEPROM content description for detail

When the IO32 pin is pulled high, the INT pin is low active; otherwise the INT pin

is high active

5.3 EEPROM Interface

EEDI

Data from EEPROM

EEDO

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

16-bit

32-bit

8-bit

DM9010EP Datasheet(PDF) 12 Page - Davicom Semiconductor, Inc.

DM9010EP Datasheet(HTML) 12 Page - Davicom Semiconductor, Inc.

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