10 usb configuration value register (cfgr), 11 usb configuration attribute register (cfgar), Usb configuration value register (cfgr) -19 – Freescale Semiconductor MCF5480 User Manual

Page 893: Usb configuration attribute register (cfgar) -19

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Memory Map/Register Definition

MCF548x Reference Manual, Rev. 3

Freescale Semiconductor

29-19

29.2.2.10 USB Configuration Value Register (CFGR)

29.2.2.11 USB Configuration Attribute Register (CFGAR)

The CFGAR contains attributes of the current configuration.

7

6

5

4

3

2

1

0

R

0

0

0

0

EPNUM

EPDIR

W

Reset

0

0

0

0

0

0

0

0

Reg

Addr

MBAR + 0xB003

Figure 29-10. Endpoint Info Register (EPINFO)

Table 29-10. EPINFO Field Descriptions

Bits

Name

Description

7–4

Reserved, should be cleared.

3–1

EPNUM

Endpoint number. Indicates the currently active endpoint.

0

EPDIR

Endpoint direction. Indicates the direction of the current endpoint.
0 OUT
1 IN

7

6

5

4

3

2

1

0

R

Configuration Value

W

Reset

0

0

0

0

0

0

0

0

Reg

Addr

MBAR + 0xB004

Figure 29-11. USB Configuration Value Register (CFGR)

Table 29-11. CFGR Field Descriptions

Bits

Name

Description

7–0

Configuratio

n

Value

This register contains the current configuration value. The application needs to write a
nonzero value to this register as part of the SET_CONFIGURATION request. See

Section 29.4.3.5.2, “Device Requests

” for more information.

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