net2890 ETC-unknow, net2890 Datasheet - Page 51

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

Specification
5.6.4 (Index 03h; IRQENB2) Interrupt Enable Register 2
5.6.5 (Index 07h; FRAMELSB) Frame Counter (LSB)
5.6.6 (Index 08h; FRAMEMSB) Frame Counter (MSB)
Bits
Bits
Bits
____________________________________________________________________________________
7:0
7:4
2:0
7
6
5
4
3
2
1
0
3
Description
Control Status Interrupt Enable. When set, this bit enables a local interrupt to be
generated when an IN or OUT token indicating Control Status has been received.
Setup Packet Interrupt Enable. When set, this bit enables a local interrupt to be
generated when a setup packet has been received from the host.
Input Pin Change Interrupt Enable. When set, this bit enables a local interrupt to
be generated when a change has been detected on either the BUSPWR# or
PWRGOOD# pins.
Reserved.
EOT Interrupt Enable. When set, this bit enables a local interrupt to be generated
when an EOT# signal is received from the DMA controller.
Root Port Reset Interrupt Enable. When set, this bit enables a local interrupt to be
generated when a root port reset is detected.
Suspend Request Interrupt Enable. When set, this bit enables a local interrupt to
be generated when the USB host is requesting the NET2890 to enter suspend mode.
Resume Interrupt Enable. When set, this bit enables a local interrupt to be
generated when a device resume has been detected.
Description
Frame Counter LSB. This field contains the least-significant bits of the frame
counter from the most recent start-of-frame packet.
Description
Reserved.
Fast Times. When this bit is set, the frame counter operates at a fast speed for testing
purposes only.
Frame Counter MSB. This field contains the most-significant bits of the frame
counter from the most recent start-of-frame packet.
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
Read
Read
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Write
Write
Write
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
Default
Default
Default
Value
Value
Value
0
0
0
0
0
0
0
0
0
0
0
0
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