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DM9013 数据表(PDF) 13 Page - Davicom Semiconductor, Inc.

部件名 DM9013
功能描述  10/100 Mbps 3-port Ethernet Switch Controller with General Processor Interface
PDF  75 Pages
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制造商  DAVICOM [Davicom Semiconductor, Inc.]
网页  http://www.davicom.com.tw
标志 DAVICOM - Davicom Semiconductor, Inc.

DM9013 数据表(HTML) 13 Page - Davicom Semiconductor, Inc.

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DM9013
3-port switch with Processor Interface
Preliminary datasheet
13
DM9013-15-DS-P03
April 9, 2009
5. Pin Description
I = Input, O = Output, I/O = Input / Output, O/D = Open Drain, P = Power, PD=internal pull-low (about 50K Ohm)
# = asserted Low
5.1 Processor Bus Interface
Pin No.
Pin Name
I/O
Description
1
CMD
I
Command Type
When high, the access of this command cycle is DATA
port
When low, the access of this command cycle is INDEX
port
2
CS#
I
Processor Chip select Command
3
IOW#
I
Processor Write Command
5
IOR#
I
Processor Read Command
6
IRQ
O
Interrupt Request
7,8,9,10,12,13,14,15,
16,17,19,20,22,23,25,26
SD0~15
I/O
Processor Data Bus bit 0~15
28,29,30,31,33,34,36,37,
38,39,41,42,43,44,46,47
SD16~31
I/O
Processor Data Bus bit 16~31 or
General purpose pins when data bus is in 16-bit mode
110
Reserved
O
Reserved
5.2 General and LED pins
Pin No.
Pin Name
I/O
Description
118,117,115,114,
113,112,111
GP0~6
I/O
General I/O Ports
Registers GPCR and GPR can program these pins
119,121,122,123,
124,126,127,128
BWLED0~7
I/O
Bandwidth LED
5.3 P2 MII / RMII / Reverse MII Interfaces
5.3.1 MII Interfaces
Pin No.
Pin Name
I/O
Description
55
MDC
O,PD MII Serial Management Data Clock
356
MDIO
I/O
MII Serial Management Data
58,59,60,61
TXD2_3~0
O,PD Port 2 MII Transmit Data
4-bit nibble data outputs (synchronous to the TXC2)
63
TXE2
O,PD Port 2 MII Transmit Enable
64
TXC2
I/O
Port 2 MII Transmit Clock.
65
CRS2
I/O
Port 2 MII Carrier Sense
66
COL2
I/O
Port 2 MII Collision Detect.
67
RXER2
I
Port 2 MII Receive Error



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