DM9620 DAVICOM [Davicom Semiconductor, Inc.], DM9620 Datasheet - Page 18

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

4.3 TX Control Register (02H)
4.4 RX Control Register ( 05H )
Preliminary
Version: DM9620 -15-DS-P02
February 20, 2012
Bit
4:3
Bit
7
6
5
4
3
2
1
0
7
6
5
2
1
0
RESERVED
RESERVED
RESERVED
DIS_LONG
CRC_DIS1
PAD_DIS1
HASHALL
DIS_CRC
EXCECM
PRMSC
WTDIS
Name
RUNT
RXEN
Name
TJDIS
ALL
PHS0,RW
PHS0,RW
PHS0,RW
PHS0,RW
PHS0,RW
PHS0,RW
PHS0,RW Filter All address in Hash Table
PHS0,RW Watchdog Timer Disable
PHS0,RW Discard Long Packet
PHS0,RW Discard CRC Error Packet
PHS0,RW Pass All Multicast
PHS0,RW Pass Runt Packet
PHS0,RW Promiscuous Mode
PHS0,RW RX Enable
Default
Default
0,RO
Reserved
Transmit Jabber Disable
When set, the transmit Jabber Timer(2048 bytes) is disabled. Otherwise the
transmit packet size can more than 2048-byte.
Excessive Collision Mode Control :
0:abort this packet when excessive collision count more than 15,
1: still try to transmit this packet
Reserved
TX Packet PAD Append Control:
0: the transmit packet size is appended to at least 64-byte.
1: the transmit packet size is unchanged from original setting.
TX Packet Index II CRC Appends Control:
0: the CRC field is appended automatically.
1: the CRC field is not appended.
Reserved
When set, the packets with multicast destination address are stored to RX memory.
When set, the packets with size less than 64-byte are stored to RX memory.
When set, the destination address is do not be checked.
When set, the received accepted packets can be stored to RX memory.
When set, the packets with CRC error are discarded from RX memory.
When set, the Watchdog Timer(2048 bytes) is disabled and the RX packet may
more than 2048-byte.
When cleared, the Watchdog Timer(2048 bytes) is enabled and he RX packet is
truncated after the data more than 2048-byte
When set, the packets with length over 1522-byte are discarded from RX memory.
Description
Description
USB2.0 to Fast Ethernet Controller
DM9620
18