DM9620 DAVICOM [Davicom Semiconductor, Inc.], DM9620 Datasheet - Page 11

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

3.2 64-pin Description
I = Input, O = Output, I/O = Input / Output, O/D = Open Drain, P = Power, PD=internal pull-low (about 50K Ohm)
3.2.1 MII Interfaces
3.2.2 RMII Interfaces
3.2.3 Reverse MII Interfaces
Preliminary
Version: DM9620 -15-DS-P02
February 20, 2012
12,13,15,16
19,20,21,22
12,13,15,16
Pin No.
Pin No.
Pin No.
12,13
15,16
19,20
21,22
26
27
11
18
33
34
25
31
24
26
27
11
18
33
34
25
31
24
26
27
11
18
33
34
Pin Name
MDC
MDIO
TXD[3:0]
TXEN
TXC
CRS
COL
RXER
RXC
RXDV
RXD[3:0]
Pin Name
MDC
MDIO
TXD3~2
TXD1~0
TXEN
TXC
CRS
COL
RXER
RXC
RXDV
RXD3~2
RXD1~0
Pin Name
MDC
MDIO
TXD[3:0]
TXEN
TXC
CRS
COL
O,PD
O,PD
O,PD
O,PD
O,PD
O,PD
O,PD
O,PD
O,PD
O,PD
Type
Type
I,PD
I,PD
I/O
I/O
I/O
I/O
O
O
O
I
I
I
I
I
I
I
I
I
I
I
I
I
Description
MII Serial Management Data Clock
MII Serial Management Data
MII Transmit Data
4-bit nibble data outputs (synchronous to the TXC)
MII Transmit Enable
MII Transmit Clock
MII Carrier Sense
MII Collision Detect
MII Receive Error
MII Receive Clock
MII Receive Data Valid
MII Receive Data
4-bit nibble data input (synchronous to RXC)
Description
MII Serial Management Data Clock
MII Serial Management Data
Reserved
RMII Transmit Data
RMII Transmit Enable
Reserved
RMII CRS_DV
Reserved, tie to ground in application.
Reserved, tie to ground in application.
50MHz reference clock.
Reserved, tie to ground in application.
Reserved, tie to ground in application.
RMII Receive Data
Description
Reserved
Reserved
MII Transmit Data
4-bit nibble data outputs (synchronous to the TXC)
MII Transmit Enable
25MHz clock output
carrier sense output when TXE or RXDV asserted
collision output when TXE and RXDV asserted
USB2.0 to Fast Ethernet Controller
DM9620
11