NNDK-MOD5272-KIT NetBurner Inc, NNDK-MOD5272-KIT Datasheet - Page 269

• Manufacturer Part Number: NNDK-MOD5272-KIT
• Description: KIT DEVELOP NETWORK FOR MOD5272
• Manufacturer: NetBurner Inc
• Series: ColdFire®r

Specifications of NNDK-MOD5272-KIT

• Main Purpose: *
• Embedded: *
• Utilized Ic / Part: MOD5272
• Primary Attributes: *
• Secondary Attributes: *
• Processor To Be Evaluated: MOD5272
• Interface Type: RS-232, RS-485, USB
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 528-1001

MOTOROLA
12.3.2 Register Descriptions
The following are detailed register diagrams and field descriptions.
12.3.2.1 USB Frame Number Register (FNR)
Once every 1 ms, the USB host issues a start-of-frame packet containing a frame number. The FNR
register captures this frame number. Figure 12-3 shows the FNR.
Table 12-3 describes FNR fields.
12.3.2.2 USB Frame Number Match Register (FNMR)
FNMR is used to signal, via the FRM_MAT interrupt, when a particular frame number is
issued by the USB host. To avoid a false match during intermediate states of a byte write
operation to the FNMR
cause an access error.
Table 12-4 describes FNMR fields.
15–11
10–0
Bits
Name
FRM
Reset
Reset
—
Field
Field
Addr
Addr
R/W
R/W
Reserved, should be cleared.
USB frame number. Contains the current USB frame number. FRM is updated with the new frame
number each time the device successfully receives a start-of-frame (SOF) packet from the USB
host. The new frame number is contained in the SOF packet.
Figure 12-4. USB Frame Number Match Register (FNMR)
15
15
Figure 12-3. USB Frame Number Register (FNR)
—
—
, Figure 12-4,
Table 12-3. FNR Field Descriptions
Chapter 12. Universal Serial Bus (USB)
11
11
10
10
byte accesses to this register are not supported and
0000_0000_0000_0000
0000_0000_0000_0000
MBAR + 0x1002
MBAR + 0x1006
Read
Description
R/W
Register Description and Programming Model
FRM_MAT
FRM
0
0
12-9