DM9620 DAVICOM [Davicom Semiconductor, Inc.], DM9620 Datasheet - Page 27

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

4.33 USB Packet Error Counter (82H)
4.34 Ethernet Receive Packet CRC Error Counter (83H)
4.35 Ethernet Transmit Excessive Collision Counter (84H)
4.36 Ethernet Transmit Collision Counter (85H)
4.37 Ethernet Transmit Late Collision Counter (86H)
4.38 RX Header Control/Status Register (91H)
Preliminary
Version: DM9620 -15-DS-P02
February 20, 2012
6~1
7-0
7-0
7-0
7-0
7-0
1:0
Bit
Bit
Bit
Bit
Bit
Bit
7
RESERVED
RESERVED
ECOL_CTR
LCOL_CTR
USB_ERR
COL_CTR
RX header
RX_ERR
MODE
Name
Name
Name
Name
Name
Name
PHS0,RW/C
PHS0,RW/C
PHS0,RW/C
PHS0,RW/C
PHS0,RW/C
Default
Default
Default
Default
Default
Default
PT,RW
P0,RW
P,RO
USB Data Error Count
This counter is increased when there has been data CRC error in USB
packet. This counter can be cleared by read if register 5 is “0” or by write to
this register with any data.
Ethernet RX Packet CRC Error Count
This counter is increased when there has been CRC error in Ethernet receive
packet. This counter can be cleared by read if register 5 is “0” or by write to
this register with any data.
Ethernet TX Packet Excessive Collision Count
This counter is increased when there has been excessive collision, i.e.
continued 16 collisions, in Ethernet transmit packet. This counter can be
cleared by read if register 5 is “0” or by write to this register with any data.
Ethernet TX Packet Collision Count
This counter is increased when there has been collision in Ethernet transmit
packet. This counter can be cleared by read if register 5 is “0” or by write to
this register with any data.
Ethernet TX Packet Late Collision Count
This counter is increased when there has been late collision in Ethernet
transmit packet. This counter can be cleared by read if register 5 is “0” or by
write to this register with any data.
RX header mode
0: 3-byte RX header : RX_status, byte_ctr_low, byte_ctr_high
1: 4-byte RX header : RX _flag, RX_status, byte_ctr_low, byte_ctr_high
Reserved
Reserved
Description
Description
Description
Description
Description
Description
USB2.0 to Fast Ethernet Controller
DM9620
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