Register Legend - Intel IXP45X Developer's Manual

A control register enables the UDC and masks the interrupt sources in the UDC. A
status register indicates the state of the interrupt sources. Each of the 16 endpoints
(control, OUT, and IN) have a control or status register. Endpoint 0 (control) has an
address for the 16-by-8 data FIFO that can be used to transmit and receive data.
Endpoint 0 also has a write count register that is used to determine the number of
bytes the USB host controller has sent to Endpoint 0.
Table 119.

Register Legend

Attribute
RV
PR
RS
RW
RW1C
Table 120. USB-Device Register Descriptions (Sheet 1 of 2)
Address
0 x C800 B000
0 x C800 B004
0 x C800 B008
0 x C800 B00C
0 x C800 B010
0 x C800 B014
0 x C800 B018
0 x C800 B01C
0 x C800 B020
0 x C800 B024
0 x C800 B028
0 x C800 B02C
0 x C800 B030
0 x C800 B034
0 x C800 B038
0 x C800 B03C
0 x C800 B040
0 x C800 B044
0 x C800 B048
0 x C800 B04C
0 x C800 B050
0 x C800 B054
0 x C800 B058
0 x C800 B05C
0 x C800 B060
0 x C800 B064
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Intel IXP45X and Intel IXP46X Product Line of Network Processors
Developer's Manual
290
® ®
Intel IXP45X and Intel
Legend
Reserved RC
Preserved RO
Read/Set WO
Read/Write NA
Normal Read
RW1S
Write '1' to clear
Name
UDCCR UDC Control Register
(Reserved) Reserved for Future Use
(Reserved) Reserved for Future Use
(Reserved) Reserved for Future Use
UDCCS0 UDC Endpoint 0 Control/Status Register
UDCCS1 UDC Endpoint 1 (IN) Control/Status Register
UDCCS2 UDC Endpoint 2 (OUT) Control/Status Register
UDCCS3 UDC Endpoint 3 (IN) Control/Status Register
UDCCS4 UDC Endpoint 4 (OUT) Control/Status Register
UDCCS5 UDC Endpoint 5 (Interrupt) Control/Status Register
UDCCS6 UDC Endpoint 6 (IN) Control/Status Register
UDCCS7 UDC Endpoint 7 (OUT) Control/Status Register
UDCCS8 UDC Endpoint 8 (IN) Control/Status Register
UDCCS9 UDC Endpoint 9 (OUT) Control/Status Register
UDCCS10 UDC Endpoint 10 (Interrupt) Control/Status Register
UDCCS11 UDC Endpoint 11 (IN) Control/Status Register
UDCCS12 UDC Endpoint 12 (OUT) Control/Status Register
UDCCS13 UDC Endpoint 13 (IN) Control/Status Register
UDCCS14 UDC Endpoint 14 (OUT) Control/Status Register
UDCCS15 UDC Endpoint 15 (Interrupt) Control/Status Register
UICR0 UDC Interrupt Control Register 0
UICR1 UDC Interrupt Control Register 1
UISR0 UDC Status Interrupt Register 0
UISR1 UDC Status Interrupt Register 1
UFNHR UDC Frame Number Register High
UFNLR UDC Frame Number Register Low
IXP46X Product Line of Network Processors—USB 1.1 Device
Attribute Legend
Read Clear
Read Only
Write Only
Not Accessible
Normal Read
Write '1' to set
Description
Controller
August 2006
Order Number: 306262-004US