net2890 ETC-unknow, net2890 Datasheet - Page 3

• Manufacturer Part Number: net2890
• Description: Interface Controller
• Manufacturer: ETC-unknow

Specification
1.
2.
3.
4.
____________________________________________________________________________________
1.1
1.2
1.3
1.4
1.5
4.1
4.2
4.3
4.4
4.5
4.6
4.7
4.8
4.9
HIGHLIGHTS ...................................................................................................................................... 7
1.4.1
1.4.2
1.4.3
1.5.1
1.5.2
1.5.3
1.5.4
PIN CONNECTION DIAGRAM ...................................................................................................... 13
PIN DESCRIPTION ........................................................................................................................... 14
FUNCTIONAL DESCRIPTION ....................................................................................................... 17
4.2.1
4.2.2
4.2.3
4.2.4
4.3.1
4.3.2
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.6.1
4.6.2
4.7.1
4.7.2
4.7.3
4.7.4
4.8.1
4.8.2
4.8.3
4.8.4
4.9.1
4.9.2
F
O
NET2890 B
NET2890 T
C
USB I
USB P
A
P
USB E
FIFO
I
L
S
NTERRUPT AND
EATURES
ACKET
USPEND
OCAL
HANGES
VERVIEW
UTOMATIC
Pin Changes .......................................................................................................................... 10
Register Changes .................................................................................................................. 10
Functional Changes .............................................................................................................. 10
Pin Changes .......................................................................................................................... 10
Register Changes .................................................................................................................. 10
Functional Changes .............................................................................................................. 12
Documentation Changes ....................................................................................................... 12
Tokens ................................................................................................................................... 17
Packets .................................................................................................................................. 17
Transaction ........................................................................................................................... 17
Transfer................................................................................................................................. 17
Out Transactions................................................................................................................... 18
In Transactions ..................................................................................................................... 18
Control Endpoint - Endpoint 0 ............................................................................................. 18
Control Write Transfer Details ............................................................................................. 20
Isochronous Endpoints.......................................................................................................... 23
Bulk Endpoints ...................................................................................................................... 25
Interrupt Endpoints............................................................................................................... 27
IN FIFOs............................................................................................................................... 28
OUT FIFOs........................................................................................................................... 29
Interrupt Status Register 1 (IRQSTAT1) ............................................................................... 29
Interrupt Status Register 2 (IRQSTAT2) ............................................................................... 29
Endpoint Response Registers (EPRSPSET, EPRSTCLR) ..................................................... 29
Endpoint Interrupt Status Register (EPIRQSTAT)................................................................ 29
Maximum Throughput........................................................................................................... 30
DMA Transfers from NET2890 to Local Bus........................................................................ 31
DMA Transfers from Local Bus to NET2890........................................................................ 31
Terminating DMA Transfers ................................................................................................. 32
The Suspend Sequence .......................................................................................................... 33
Host-Initiated Wake-Up ........................................................................................................ 33
S
NTERFACE
ROTOCOL
............................................................................................................................................ 28
NDPOINTS
B
L
US
M
ENGTHS
F
........................................................................................................................................ 7
....................................................................................................................................... 7
ROM
NET2890 USB Interface Controller
.................................................................................................................................... 30
ODE
LOCK
YPICAL
R
ETRIES
............................................................................................................................. 33
S
R
............................................................................................................................ 17
............................................................................................................................ 17
............................................................................................................................ 18
TATUS
335 Pioneer Way, Mountain View, California 94041
D
.......................................................................................................................... 18
EV
S
IAGRAM
YSTEM
..................................................................................................................... 18
1
TEL [phone] FAX [phone]
TO
R
EGISTER
R
............................................................................................................ 9
EV
B
NetChip Technology, Inc., 1999
Rev 2.0, Draft 9, July 16, 1999
LOCK
2................................................................................................... 10
http://www.netchip.com
O
D
PERATION
IAGRAM
................................................................................ 9
............................................................................ 29
NET2890 USB Interface Controller
3