DM9013 Datasheet, PDF (22/75 Pages) Davicom Semiconductor, Inc. – 10/100 Mbps 3-port Ethernet Switch Controller with General Processor Interface

DM9013
3-port switch with Processor Interface
6.5 RX Status Register (06H)
Bit
Name
Default
7:4 RESERVED 0,RO
3:2
SRCP
0,RO
1
CE
PH0,RO
0 RESERVED 0,RO
Description
Reserved
Source Port Number
CRC Error
It is set to indicate that the received frame ends with a CRC error
Reserved
6.6 Receive Overflow Counter Register (07H)
Bit
Name
Default
Description
7
RXFU PHS0,R/C Receive Overflow Counter Overflow
This bit is set when the ROC has an overflow condition
6:0
ROC PHS0,R/C Receive Overflow Counter
This is a statistic counter to indicate the received packet count upon FIFO overflow
6.7 Flow Control Register (0AH)
Bit
Name
Default
7:6 RESERVED 0,RO
5 FLOW_EN PHS0,RW
4:0 RESERVED 0,RO
Description
Reserved
RX Flow Control Enable
Enables the pause packet for high/low water threshold control
Reserved
6.8 EEPROM & PHY Control Register (0BH)
Bit
Name
Default
Description
7:6 RESERVED 0,RO Reserved
5
REEP PH0,RW Reload EEPROM. Driver needs to clear it up after the operation completes
4
WEP
PH0,RW Write EEPROM Enable
3
EPOS PH0,RW EEPROM or PHY Operation Select
When reset, select EEPROM; when set, select PHY
2
ERPRR PH0,RW EEPROM Read or PHY Register Read Command. Driver needs to clear it up after
the operation completes.
1
ERPRW PH0,RW EEPROM Write or PHY Register Write Command. Driver needs to clear it up after
the operation completes.
0
ERRE
PH0,RO EEPROM Access Status or PHY Access Status
When set, it indicates that the EEPROM or PHY access is in progress
6.9 EEPROM & PHY Address Register (0CH)
Bit
Name
Default
Description
7:6 PHY_ADR PH01,RW PHY Address bit 1 and 0; the PHY address bit [4:2] is force to 0.
5:0
EROA PH0,RW EEPROM Word Address or PHY Register Address
6.10 EPROM & PHY Data Register (0DH~0EH)
Bit
Name
Default
Description
7:0 EE_PHY_L PH0,RW EEPROM or PHY Low Byte Data (0DH)
This data is made to write low byte of word address defined in Reg. CH to
EEPROM or PHY
7:0 EE_PHY_H PH0,RW EEPROM or PHY High Byte Data (0EH)
This data is made to write high byte of word address defined in Reg. CH to
EEPROM or PHY
22
Preliminary datasheet
DM9013-15-DS-P03
April 9, 2009