Oxford Semiconductor, Inc.
OXU140CM Data Sheet
The OXU140CM is supported with USB device drivers and the Oxford
Semiconductor USBLink
TM
product suite. The USBLink host, peripheral,
and OTG stacks have been ported to a wide variety of real time operating
system including VxWorks
®
, ThreadX
®
, and Nucleus
®
.
In addition, Oxford Semiconductor also makes available low‐level
controller drivers for other native USB stacks such as those included with
Windows
®
CE and Linux
®
2.6.x.
Figure 1 shows a block diagram of the OXU140CM.
Figure 1 OXU140CM Architectural Diagram
OSC1
OSC2
Clock/
Osc Pads
and Clk
Div
ENVREG
Voltage Regulator
VBus Control Circuit
and
Vbus Charge Pump
VREGOUT
VBUS
/EXVBO
ACK[1:0]
REQ[1:0]
DMA
Interface
System Configuration
& Control Registers
HNP/SRP Logic
/RESET
/CS
/WR
/RD
INT
GPIO
A[14:1]
D[15:0]
USB Host
Control
Logic
Host SIE
& Root
Hub
Memory
Blocks
µP
Interface
OTG XCVR
USB
Peripheral
Controller
USB Peripheral
Controller Registers
ID
P_DM
P_DP
DM1
DP1
TEST
Tes t
Control
USB Host
Controller
Registers
USB Xcvr
DM2
DP2
/PO
/OC
M_CLK
M_CMD
M_DATA
[7:0]
CE-ATA/ MMC/SD
Controller
DS-0038 Jul 06
External--Free Release
3
OXFORD [ OXFORD SEMICONDUCTOR ]
