Intel IXP42X 用户手册

Intel

®

 IXP42X Product Line of Network Processors and IXC1100 Control Plane Processor

DM

September 2006

480

Order Number: 252480-006US

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.

USB-Device Register Descriptions (Sheet 1 of 2)

0 x C800 B000

UDCCR

UDC Control Register

0 x C800 B004

Reserved

Reserved for Future Use

0 x C800 B008

Reserved

Reserved for Future Use

0 x C800 B00C

Reserved

Reserved for Future Use

0 x C800 B010

UDCCS0

UDC Endpoint 0 Control/Status Register

0 x C800 B014

UDCCS1

UDC Endpoint 1 (IN) Control/Status Register

0 x C800 B018

UDCCS2

UDC Endpoint 2 (OUT) Control/Status Register

0 x C800 B01C

UDCCS3

UDC Endpoint 3 (IN) Control/Status Register

0 x C800 B020

UDCCS4

UDC Endpoint 4 (OUT) Control/Status Register

0 x C800 B024

UDCCS5

UDC Endpoint 5 (Interrupt) Control/Status Register

0 x C800 B028

UDCCS6

UDC Endpoint 6 (IN) Control/Status Register

0 x C800 B02C

UDCCS7

UDC Endpoint 7 (OUT) Control/Status Register

0 x C800 B030

UDCCS8

UDC Endpoint 8 (IN) Control/Status Register

0 x C800 B034

UDCCS9

UDC Endpoint 9 (OUT) Control/Status Register

0 x C800 B038

UDCCS10

UDC Endpoint 10 (Interrupt) Control/Status Register

0 x C800 B03C

UDCCS11

UDC Endpoint 11 (IN) Control/Status Register

0 x C800 B040

UDCCS12

UDC Endpoint 12 (OUT) Control/Status Register

0 x C800 B044

UDCCS13

UDC Endpoint 13 (IN) Control/Status Register

0 x C800 B048

UDCCS14

UDC Endpoint 14 (OUT) Control/Status Register

0 x C800 B04C

UDCCS15

UDC Endpoint 15 (Interrupt) Control/Status Register

0 x C800 B050

UICR0

UDC Interrupt Control Register 0

0 x C800 B054

UICR1

UDC Interrupt Control Register 1

0 x C800 B058

UISR0

UDC Status Interrupt Register 0

0 x C800 B05C

UISR1

UDC Status Interrupt Register 1

0 x C800 B060

UFNHR

UDC Frame Number Register High

0 x C800 B064

UFNLR

UDC Frame Number Register Low

0 x C800 B068

UBC2

UDC Byte Count Register 2

0 x C800 B06C

UBC4

UDC Byte Count Register 4

0 x C800 B070

UBC7

UDC Byte Count Register 7

0 x C800 B074

UBC9

UDC Byte Count Register 9

0 x C800 B078

UBC12

UDC Byte Count Register 12

0 x C800 B07C

UBC14

UDC Byte Count Register 14

0 x C800 B080

UDDR0

UDC Endpoint 0 Data Register

0 x C800 B100

UDDR1

UDC Endpoint 1 Data Register

0 x C800 B180

UDDR2

UDC Endpoint 2 Data Register