DM9620 DAVICOM [Davicom Semiconductor, Inc.], DM9620 Datasheet - Page 24

• Manufacturer Part Number: DM9620
• Description: USB2.0 to 10/100M Fast Ethernet Controller
• Manufacturer: DAVICOM [Davicom Semiconductor, Inc.]

4.21 TX Special Control Register (2DH)
4.22 External PHY Force Mode Control Register (2EH)
4.23 Transmit Check Sum Control Register (31H)
Preliminary
Version: DM9620 -15-DS-P02
February 20, 2012
7~6
7~3
3:0
Bit
Bit
Bit
7
6
5
3
5
4
3
2
1
0
2
1
0
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
LCOL_TRY
EXTERNAL
UDPCSE
DUPLEX
TCPCSE
TX_GAP
SPEED
IPCSE
Name
Name
Name
LINK
HPS0,RW
HPS0,RW
HPS0,RW
PH0,RW
PH0,RW
PH0,RW
PH0,RW
PH0,RW
HP0,RW
PH0,RW
HP0,RW
HP0,RW
HP0,RW
Default
Default
Default
0,RO
0,RO
0,RO
Reserved
Late Collision Retry
Reserved
Reserved
TX Inter frame Gap
Reserved
Force to external PHY mode
Reserved
Reserved
Force external PHY speed mode in MAC register 1 bit 7
0: force to 100Mbps mode
1: force to 10Mbps mode
Force external PHY duplex mode in MAC register 0 bit 3
0: force to full-duplex
1: force to half-duplex
Force external PHY link mode in MAC register 1 bit 6
0: force to link ON
1: force to link OFF
Reserved
UDP Checksum Generation Enable
TCP Checksum Generation Enable
IP Checksum Generation Enable
1001: 72-bit
1010: 80-bit
1011: 88-bit
1100: 96-bit
1101: 104-bit
1110:112-bit
1111: 120-bit
0XXX: 96-bit
1000: 64-bit
Description
Description
Description
USB2.0 to Fast Ethernet Controller
DM9620
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