net2890 ETC-unknow, net2890 Datasheet - Page 53

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

Specification
5.6.12 (Index 15h; EPBPKTSIZMSB) EPB Max Packet Size (MSB)
5.6.13 (Index 16h; EPCPKTSIZLSB) EPC Max Packet Size (LSB)
5.6.14 (Index 17h; EPCPKTSIZMSB) EPC Max Packet Size (MSB)
5.6.15 (Index 18h; EPDPKTSIZLSB) EPD Max Packet Size (LSB)
5.6.16 (Index 19h; EPDPKTSIZMSB) EPD Max Packet Size (MSB)
5.6.17 (Index 20h; F0_AETH) FIFO 0 Almost Empty Threshold Register
Bits
Bits
Bits
Bits
Bits
Bits
____________________________________________________________________________________
7:2
1:0
7:0
7:2
1:0
7:0
7:2
1:0
7:5
4:0
Description
Reserved
EPB Max Packet Size MSB. This field provides the most significant bits of the
Endpoint B Maximum Packet Size.
Description
EPC Max Packet Size LSB. This field provides the least significant bits of the
Endpoint C Maximum Packet Size.
Description
Reserved
EPC Max Packet Size MSB. This field provides the most significant bits of the
Endpoint C Maximum Packet Size.
Description
EPD Max Packet Size LSB. This field provides the least significant bits of the
Endpoint D Maximum Packet Size.
Description
Reserved
EPD Max Packet Size MSB. This field provides the most significant bits of the
Endpoint D Maximum Packet Size.
Description
Reserved
FIFO Almost Empty Threshold. This register determines the threshold at which the
FIFO almost empty status bit is set. The threshold is in terms of bytes. For Endpoint
0, this value can range from 0 to 16.
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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
Read
Read
Read
Read
Read
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Write
Write
Write
Write
Write
Write
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Default
Default
Default
Default
Default
Default
Value
Value
Value
Value
Value
Value
64
64
0
0
0
0
0
0
0
0
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