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DM9620 Datenblatt(PDF) 28 Page - Davicom Semiconductor, Inc.

Teilenummer DM9620
Bauteilbeschribung  USB2.0 to 10/100M Fast Ethernet Controller
PDF  71 Pages
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Hersteller  DAVICOM [Davicom Semiconductor, Inc.]
Direct Link  http://www.davicom.com.tw
Logo DAVICOM - Davicom Semiconductor, Inc.

DM9620 Datenblatt(HTML) 28 Page - Davicom Semiconductor, Inc.

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DM9620
USB2.0 to Fast Ethernet Controller
Preliminary
28
Version: DM9620 -15-DS-P02
February 20, 2012
4.39 USB Squelch Control (95H)
Bit
Name
Default
Description
7~2
RESERVED
P0,RO
Reserved
2~0
SQUELCH
P101,RW
Reference voltage for USB squelch circuit
000 for Reference voltage = 27.5mV
100 for Reference voltage = 137.5mV (default)
111 for Reference voltage = 220mV
4.40 USB Address (96H)
Bit
Name
Default
Description
7~0
USB_ADR
P0,RO
USB Address
4.41 USB Device Address Register (F0H)
Bit
Name
Default
Description
7
RESERVED
0,RO
Reserved
6:0
USBFA
0,RO
USB device address
4.42 Receive Packet Counter Register (F1H)
Bit
Name
Default
Description
7:0
RXC
0,RO
RXC is the packet counter received in SRAM
4.43 Transmit Packet Counter/USB Status Register (F2H)
Bit
Name
Default
Description
7
RXFAULT
0,RC
Indicate RX has unexpected condition
6
SUSFLAG
0,RC
Indicate device has suspend condition
5
EP1RDY
0,RO
Indicate there are data ready for read from EP1 pipe
4
RESERVED
0,RO
Reserved
3
BOFAULT
0,RO
Indicate Bulk Out has unexpected condition
2
TXC2
0,RO
Represent there is full in transmit buffer
1
TXC1
0,RO
Represent there is almost full in transmit buffer
0
TXC0
0,RO
Represent there have packets in transmit buffer.
4.44 USB Control Register (F4H)
Bit
Name
Default
Description
7:6
Reserved
0,RW
Reserved
5
EP3ACK
0,RW
When set and EP3_NAK=0, EP3 will always return 8-byte data to host per
interrupt-interval
4
EP3NAK
0,RW
When set, EP3 will always return NAK.
3:1
Reserved
0,RW
Reserved
0
MEMTST
0,RW
Before any memory-command, this bit must be set to 1. When in MEM_TST,
TX/RX fifo controller will be flushed.



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