net2890 ETC-unknow, net2890 Datasheet - Page 9

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

Specification
1.3 NET2890 Block Diagram
1.4 NET2890 Typical System Block Diagram
____________________________________________________________________________________
USB
Connector
USB Cable
Serial Interface
USB
CPU
USB Signals
Engine
SIE_TX_DATA[7:0]
SIE_RX_DATA[7:0]
335 Pioneer Way, Mountain View, California 94041
USB Interface
LDIN[7:0]
TEL [phone] FAX [phone]
Controller
NET2890
FIFO_WR_DATA[7:0]
NetChip Technology, Inc., 1999
Rev 2.0, Draft 9, July 16, 1999
Device Electronics and Mechanics
http://www.netchip.com
(Printer, Scanner, Modem, etc.)
Endpoint 0
Registers
Endpoint
Endpoint
Endpoint
Endpoint
C FIFO
D FIFO
Control
A FIFO
B FIFO
Setup
FIFO
Device Controller
RX_EP_DATA[7:0]
RX_CTL_DATA[7:0]
SIE_TX_DATA[7:0]
RAM
NET2890 USB Interface Controller
Local Bus
SETUP_DATA[7:0]
FIFO_RD_DATA[7:0]
CFG_RD_DATA[7:0]
Configuration
Registers
LDOUT[7:0]
ROM
LDIN[7:0]
Input Buffer
Output
Buffer
LD[7:0]
9