Oxford Semiconductor, Inc.
OXU140CM Data Sheet
The OXU140CM is supported with USB device drivers and the Oxford
Semiconductor USBLinkTM 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
Clock/
Osc Pads
and Clk
Div
OSC1
OSC2
ENVREG
Voltage Regulator
VREGOUT
VBus Control Circuit
and
Vbus Charge Pump
VBUS
ACK[1:0]
REQ[1:0]
/EXVBO
DMA
Interface
System Configuration
& Control Registers
HNP/SRP Logic
ID
USB Peripheral
Controller Registers
/RESET
/CS
USB
Peripheral
Controller
/WR
/RD
P_DM
P_DP
µP
INT
Interface
OTG XCVR
GPIO
Memory
Blocks
A[14:1]
D[15:0]
DM1
DP1
Host SIE
& Root
Hub
USB Host
Control
Logic
Tes t
Control
TEST
DM2
DP2
USB Host
Controller
Registers
USB Xcvr
/PO
/OC
M_CLK
M_CMD
CE-ATA/MMC/SD
Controller
M_DATA
[7:0]
DS-0038 Jul 06
External--Free Release
3
OXFORD [ OXFORD SEMICONDUCTOR ]
