net2890 ETC-unknow, net2890 Datasheet - Page 42

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

Specification
5.4 Endpoint / FIFO Registers
There are 5 sets of endpoint / FIFO registers, one for each endpoint.
5.4.1 (Address 10h; EPCFG) Endpoint Configuration Register (one per
Endpoint)
NOTE: For Endpoint 0, all fields in this register are assigned to fixed values, and are RESERVED.
Bits
____________________________________________________________________________________
7:4
1:0
3
2
Description
Endpoint Number. This field selects the number of the endpoint. Valid numbers are
0 to 15. This field has no effect on Endpoint 0, which always has an endpoint
number of 0.
Endpoint Direction. This bit selects the direction of this endpoint, if it is
unidirectional. 0 = OUT, 1 = IN. Endpoint 0 is bi-directional, and ignores this bit.
The direction is with respect to the USB host point of view. Note that a maximum of
one OUT and IN endpoint is allowed for each endpoint number.
Endpoint Enable. When set, this bit enables this endpoint. This bit has no effect on
Endpoint 0, which is always enabled.
Endpoint Type. This field selects the type of this endpoint. Endpoint 0 is forced to a
Control type.
Value
0
1
2
3
Description
Reserved
Isochronous
Bulk
Interrupt
335 Pioneer Way, Mountain View, California 94041
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NetChip Technology, Inc., 1999
Rev 2.0, Draft 9, July 16, 1999
http://www.netchip.com
NET2890 USB Interface Controller
Read
Yes
Yes
Yes
Yes
Write
Yes
Yes
Yes
Yes
Default
Value
0
0
0
0
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