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Número de pieza | DM9620I | |
Descripción | USB2.0 to 10/100M Fast Ethernet Controller | |
Fabricantes | DAVICOM | |
Logotipo | ||
Hay una vista previa y un enlace de descarga de DM9620I (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
No Preview Available ! DM9620/DM9620I
USB2.0 to Fast Ethernet Controller
DAVICOM Semiconductor, Inc.
DM9620/DM9620I
USB2.0 to 10/100M Fast Ethernet Controller
DATA SHEET
Preliminary
Version: DM9620/DM9620I -15-DS-P02
December 26, 2011
Preliminary
Version: DM9620/DM9620I-DS-P02
December 26, 2011
1
1 page DM9620/DM9620I
USB2.0 to Fast Ethernet Controller
7.2.13 MLT-3 to NRZI Decoder............................................................................................. 55
7.2.14 Clock Recovery Module .............................................................................................. 55
7.2.15 NRZI to NRZ ............................................................................................................... 55
7.2.16 Serial to Parallel........................................................................................................... 55
7.2.17 Descrambler ................................................................................................................. 55
7.2.18 Code Group Alignment................................................................................................ 56
7.2.19 4B5B Decoder.............................................................................................................. 56
7.2.20 10Base-T Operation ..................................................................................................... 56
7.2.21 Collision Detection ...................................................................................................... 56
7.2.22 Carrier Sense................................................................................................................ 56
7.2.23 Auto-Negotiation ......................................................................................................... 56
7.2.24 Auto-Negotiation (continued)...................................................................................... 56
8. DC and AC Electrical Characteristics................................................................................................. 57
8.1 Absolute Maximum Ratings ( 25°C ) ....................................................................................... 57
8.1.1 Operating Conditions ..................................................................................................... 57
8.2 DC Electrical Characteristics (VDD = 3.3V) ........................................................................... 58
8.3 AC Electrical Characteristics & Timing Waveforms ............................................................... 58
8.3.1 TP Interface.................................................................................................................... 58
8.3.2 Oscillator/Crystal Timing ( 25°C ) ................................................................................ 59
9. AC Timing waveform:........................................................................................................................ 60
9.1 Power On Reset Timing............................................................................................................ 60
9.2 EEPROM timing....................................................................................................................... 61
9.3 MII Management Timing.......................................................................................................... 62
9.4 MII TX timing........................................................................................................................... 63
9.5 MII RX timing .......................................................................................................................... 63
9.6 RMII TX timing........................................................................................................................ 64
9.7 RMII RX timing........................................................................................................................ 64
9.8 RevMII TX timing .................................................................................................................... 65
9.9 RevMII RX timing.................................................................................................................... 65
10 Magnetic and Crystal Selection Guide .............................................................................................. 66
10.1 Magnetic Selection Guide....................................................................................................... 66
10.2 Crystal Selection Guide .......................................................................................................... 66
11. Application circuit ............................................................................................................................ 68
12. Package Information ......................................................................................................................... 70
Preliminary
Version: DM9620/DM9620I -15-DS-P02
December 26, 2011
5
5 Page DM9620/DM9620I
USB2.0 to Fast Ethernet Controller
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
Pin No.
Pin Name
26 MDC
27 MDIO
12,13,15,16 TXD[3:0]
11 TXEN
18 TXC
33 CRS
34 COL
25 RXER
31 RXC
24 RXDV
19,20,21,22 RXD[3:0]
Type
O,PD
I/O
O,PD
O,PD
I,PD
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)
3.2.2 RMII Interfaces
Pin No.
Pin Name
26 MDC
27 MDIO
12,13
TXD3~2
15,16
TXD1~0
11 TXEN
18 TXC
33 CRS
34 COL
25 RXER
31 RXC
24 RXDV
19,20
RXD3~2
21,22
RXD1~0
3.2.3 Reverse MII Interfaces
Pin No.
Pin Name
26 MDC
27 MDIO
12,13,15,16 TXD[3:0]
11 TXEN
18 TXC
33 CRS
34 COL
Type
O,PD
I/O
O,PD
O,PD
O,PD
I,PD
I
I
I
I
I
I
I
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
I/O
O,PD
I/O
O,PD
O,PD
O
O
O
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
Preliminary
Version: DM9620/DM9620I -15-DS-P02
December 26, 2011
11
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet DM9620I.PDF ] |
Número de pieza | Descripción | Fabricantes |
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