mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 271

• Manufacturer Part Number: mcf5272
• Description: Mcf5272 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA
Table 12-6 lists field descriptions for the USB real-time frame monitor match register.
12.3.2.5 USB Function Address Register (FAR)
Figure 12-7 shows the USB function address register (FAR). If EP0CTL[DEBUG] is set,
EP0CTL[DEV_CFG] also reflects any change in FAR. If DEBUG is zero, the MCF5272
USB controller is not notified if the function address changes. This value is for information
only.
Table 12-7 gives the USB function address register field descriptions.
12.3.2.6 USB Alternate Settings Register (ASR)
Defines which of several possible interfaces is currently active.
6–0
Bits
7
15–14
13–0
BIts
Figure 12-6. USB Real-Time Frame Monitor Match Register (RFMMR)
Reset
Field
Addr
Name
R/W
RTFM_MAT Real-time frame monitor match. Contains the real-time frame monitor match value. When
FAD
—
Name
—
15
Reset
Field
Addr
R/W
—
Reserved, should be cleared
USB function address. This field holds the USB address of the device. The USB module writes
this field with the USB address assigned to the device with a SET_ADDRESS device request.
Figure 12-7. USB Function Address Register (FAR)
14
Reserved, should be cleared
the RFMR value equals the value in the register, an ASOF interrupt is generated. The
value programmed in this register should not be less than 0x2EE0--the nominal period
between SOF packets.
—
7
13
Table 12-6. RFMMR Field Descriptions
Table 12-7. FAR Field Descriptions
Chapter 12. Universal Serial Bus (USB)
6
0011_1111_1111_1111
MBAR + 0x100E
MBAR + 0x1013
0000_0000
Read
R/W
Register Description and Programming Model
Description
RTFM_MAT
Description
FAD
0
0
12-11