net2890 ETC-unknow, net2890 Datasheet - Page 11

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

Specification
PKTLENLSB
PKTLENMSB
FIFOBASE
FIFOSIZE
FIFOCTL
FIFOINTENB
FIFOSTAT
FIFOCNT
EPRSPSET
EPRSPCLR
EPIRQENB
EPUSBSTAT
IRQENB2
INDEX2
MINDEX1
MINDEX2
DIAG
EPnPKTSIZE
FIFOETHRS
FIFOFTHRS
____________________________________________________________________________________
Moved from Index register 5 to Base register 0Bh.
Moved from Index register 6 to Base register 0Ch.
Register is obsolete.
Register is obsolete. FIFOs are all fixed sizes.
Moved to Endpoint paged registers address 1Ch.
“Fifo Enable” bit, “Endpoint Select”bits are obsolete.
FIFO Valid Bit removed, moved to FIFOSTAT.
Removed. Interrupt enables moved to EPIRQENB register.
Moved to Endpoint registers address 1Eh.
“FIFO Valid” bit added, changed to Yes/SET with Auto-Clear feature.
FIFO Almost Full and Almost Empty interrupts moved to EPIRQSTAT register.
Moved to Endpoint paged registers address 1Ah.
“Zero-Length Packet Response” bit is obsolete.
“Endpoint Stall” and “Endpoint Toggle” bits have been swapped. See the description in
Section 5, Registers.
“Zero-Length Packet Response” bit is obsolete.
“Endpoint Stall” and “Endpoint Toggle” bits have been swapped. See the description in
Section 5, Registers.
Bits have been re-arranged to simplify software. See Section 5, Registers.
Transmit Register Valid, Receive Register Valid bits are obsolete.
“Timeout” status bit and Short Packet Transferred added.
FIFO interrupt enables moved to EPIRQENB register.
Removed.
Removed.
Removed.
Added new index register to control diagnostic features.
Added new maximum packet size registers (Index 10h to 19h).
Renamed Fn_AETH. The FIFO almost empty threshold registers have been moved from
the Endpoint/FIFO registers to the index registers.
Renamed Fn_AFTH. The FIFO almost full threshold registers have been moved from the
Endpoint/FIFO registers to the index registers.
335 Pioneer Way, Mountain View, California 94041
TEL [phone] FAX [phone]
NetChip Technology, Inc., 1999
Rev 2.0, Draft 9, July 16, 1999
http://www.netchip.com
NET2890 USB Interface Controller
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