DM9620 DAVICOM [Davicom Semiconductor, Inc.], DM9620 Datasheet - Page 15

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

4. Vendor Control and Status Register Set
The DM9620 implements several control and status registers, which can be accessed by the USB vendor register type
commands. All CRs are set to their default values by hardware or software reset unless otherwise specified.
Preliminary
Version: DM9620 -15-DS-P02
February 20, 2012
EXCOL_CTR
EEP_CTRL
LCOL_CTR
CRC_CTR
COL_CTR
RCSCSR
Register
TX_CTR
EPDRH
TCSCR
EPADR
GPCR2
GPCR3
PPCSR
UPERR
EPDRL
FEPHY
CHIPR
ROCR
GPCR
EPCR
EPAR
TSCR
GPR2
GPR3
BPTR
FCTR
WCR
MAR
NCR
RCR
GPR
NSR
TCR
RSR
FCR
PAR
VID
PID
Network Control Register
Network Status Register
TX Control Register
RX Control Register
RX Status Register
Receive Overflow Counter Register
Back Pressure Threshold Register
Flow Control Threshold Register
RX Flow Control Register
EEPROM & PHY Control Register
EEPROM & PHY Address Register
EEPROM & PHY Low Byte Data Register
EEPROM & PHY High Byte Data Register
Wake Up Control Register
Physical Address Register
Multicast Address Register
General Purpose Control Register
General Purpose Register
Vendor ID
Product ID
CHIP revision
TX Special Control Register
Force External PHY Mode Control Register
Transmit Check Sum Control Register
Receive Check Sum Control Status Register
External PHY address
General Purpose Control Register 2
General Purpose Register 2
General Purpose Control Register 3
General Purpose Register 3
EEPROM and PHY Control Register
Pause Packet Control Status Register
Transmit Packet Counter
USB Packet Error Counter
Ethernet Receive Packet CRC Error Counter
Ethernet Transmit Excessive Collision Counter
Ethernet Transmit Collision Counter
Ethernet Transmit Late Collision Counter
Description
00H
01H
02H
05H
06H
07H
08H
09H
0AH
0BH
0CH
0DH
0EH
0FH
10H-15H
16H-1DH
1EH
1FH
28H-29H
2AH-2BH
2CH
2DH
2EH
31H
32H
33H
34H
35H
36H
37H
3AH
3DH
81H
82H
83H
84H
85H
86H
USB2.0 to Fast Ethernet Controller
Offset
00H
00H
00H
00H
00H
00H
37H
38H
00H
00H
40H
Unknown
Unknown
00H
Determined by
EEPROM
0000000000000
080
01H
Unknown
0A46H
9620H
01H
00H
00H
00H
00H
01H
00H
00H
00H
00H
00H
04H
00H
00H
00H
00H
00H
00H
DM9620
Default value
after reset
15