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Specification
NET2272 USB Peripheral Controller
______________________________________________________________________________
NetChip Technology, Inc., 2003
Patent Pending
335 Pioneer Way, Mountain View, California 94041
TEL (650) 526-1490
FAX (650) 526-1494
http://www.netchip.com
Rev 1.2, October 15, 2003
72
8.6.11 (Address 0Fh; EP_RSPSET) Endpoint Response Register Set
Note: Writing a 1 to bits 7:0 sets the corresponding register bits.
Bits
Description
Read
Write
Default
Value
7
Alt NAK OUT Packets.
Yes
Yes/Set
0
6
Hide Status Phase.
Yes
Yes/Set
0
5
Auto Validate.
Yes
Yes/Set
1
4
Interrupt Mode.
Yes
Yes/Set
0
3
Control Status Phase Handshake.
Yes
Yes/Set
0
2
NAK OUT Packets Mode.
Yes
Yes/Set
1
1
Endpoint Toggle.
Yes
Yes/Set
0
0
Endpoint Halt.
Yes
Yes/Set
0
8.6.12 (Address 28h; EP_MAXPKT0) Max Packet Size (low byte)
Bits
Description
Read
Write
Default
Value
7:0
EP_MAXPKT[7:0]. This field determines the Endpoint Maximum Packet Size.
Yes
Yes
EP0 = 64
EPA = 512
EPB = 512
EPC = 512
8.6.13 (Address 29h; EP_MAXPKT1) Max Packet Size (high byte)
Bits
Description
Read
Write
Default
Value
7:5
Reserved.
Yes
No
0
4:3
Additional Transaction Opportunities. This field determines the number of
additional transaction opportunities per microframe for high-speed isochronous and
interrupt endpoints.
00 = None (1 transaction per microframe)
01 = 1 additional (2 per microframe)
10 = 2 additional (3 per microframe)
11 = Reserved
Yes
Yes
0
2:0
EP_MAXPKT[10:8]. This field determines the Endpoint Maximum Packet Size.
Yes
Yes
EP0 = 64
EPA = 512
EPB = 512
EPC = 512
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