MCF5272VF66 Freescale Semiconductor, MCF5272VF66 Datasheet - Page 267

• Manufacturer Part Number: MCF5272VF66
• Description: IC MPU 32BIT 66MHZ 196-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF527xr

Specifications of MCF5272VF66

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 66MHz
• Connectivity: EBI/EMI, Ethernet, I²C, SPI, UART/USART, USB
• Peripherals: DMA, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (4K x 32)
• Program Memory Type: ROM
• Ram Size: 1K x 32
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 196-MAPBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

12.3.2
The following are detailed register diagrams and field descriptions.
12.3.2.1
Once every 1 ms, the USB host issues a start-of-frame packet containing a frame number. The FNR register
captures this frame number.
Table 12-3
12.3.2.2
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,
Figure
Table 12-4
Freescale Semiconductor
15–11
10–0
15–11
10–0
Bits
Bits
12-4, byte accesses to this register are not supported and cause an access error.
Name
FRM_MAT Frame number match value. Contains the USB frame number match value. When the FNR value equals
FRM
—
Name
describes FNR fields.
describes FNMR fields.
Register Descriptions
—
Reset
Reset
Field
Field
USB Frame Number Register (FNR)
Addr
USB Frame Number Match Register (FNMR)
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.
15
15
Reserved, should be cleared
the value in the register, a FRM_MAT interrupt is generated.
MCF5272 ColdFire
Figure 12-4. USB Frame Number Match Register (FNMR)
Figure 12-3
Figure 12-3. USB Frame Number Register (FNR)
—
—
Table 12-4. FNMR Field Descriptions
Table 12-3. FNR Field Descriptions
®
11
11
Integrated Microprocessor User’s Manual, Rev. 3
shows the FNR.
10
10
0000_0000_0000_0000
0000_0000_0000_0000
MBAR + 0x1002
MBAR + 0x1006
Read
R/W
Description
Description
FRM_MAT
FRM
Universal Serial Bus (USB)
0
0
12-9