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DM9000BEP Datasheet(PDF) 31 Page - Davicom Semiconductor, Inc.

Part # DM9000BEP
Description  Ethernet Controller With General Processor Interface
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Manufacturer  DAVICOM [Davicom Semiconductor, Inc.]
Direct Link  http://www.davicom.com.tw
Logo DAVICOM - Davicom Semiconductor, Inc.

DM9000BEP Datasheet(HTML) 31 Page - Davicom Semiconductor, Inc.

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DM9000B
Ethernet Controller with General Processor Interface
Final
31
Version: DM9000B-13-DS-F03
March 5, 2012
6.42 Memory data write command with address increment Register (F8H)
Bit
Name
Default
Description
7:0
MWCMD
X,WO
Write Data to TX SRAM
After the write of this command, the write pointer is increased by 1 or 2, depends on
the operator mode. (8-bit or 16-bit respectively)
6.43 Memory data write address Register (FAH~FBH)
Bit
Name
Default
Description
7:0
MDWAH
PS0,RW
Memory Data Write_ address High Byte
7:0
MDWAL
PS0,RW
Memory Data Write_ address Low Byte
6.44 TX Packet Length Register (FCH~FDH)
Bit
Name
Default
Description
7:0
TXPLH
X,R/W
TX Packet Length High byte
7:0
TXPLL
X,,R/W
TX Packet Length Low byte
6.45 Interrupt Status Register (FEH)
Bit
Name
Default
Description
7
IOMODE
T0, RO
0 :
16-bit mode
1:
8-bit mode
6
RESERVED
RO
Reserved
5
LNKCHG
PS0,RW/C1
Link Status Change
1: Affirmative
0: Negative
4
UDRUN
PS0,RW/C1
Transmit Under-run
1: Affirmative
0: Negative
3
ROO
PS0,RW/C1
Receive Overflow Counter Overflow
1: Affirmative
0: Negative
2
ROS
PS0,RW/C1
Receive Overflow
1: Affirmative
0: Negative
1
PT
PS0,RW/C1
Packet Transmitted
1: Affirmative
0: Negative
0
PR
PS0,RW/C1
Packet Received
1: Affirmative
0: Negative
6.46 Interrupt Mask Register (FFH)
Bit
Name
Default
Description


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