MCF5253VM140J Freescale Semiconductor, MCF5253VM140J Datasheet - Page 484

• Manufacturer Part Number: MCF5253VM140J
• Description: IC MCU 2.1MIPS 140MHZ 225MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF525xr

Specifications of MCF5253VM140J

• Core Processor: Coldfire V2
• Core Size: 32-Bit
• Speed: 140MHz
• Connectivity: CAN, EBI/EMI, I²C, QSPI, UART/USART, USB OTG
• Peripherals: DMA, WDT
• Program Memory Type: ROMless
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 1.08 V ~ 1.32 V
• Data Converters: A/D 6x12b
• Oscillator Type: External
• Operating Temperature: -20°C ~ 70°C
• Package / Case: 225-MAPBGA
• Processor Series: MCF525x
• Core: ColdFire V2
• 3rd Party Development Tools: JLINK-CF-BDM26, EWCF
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Details

Universal Serial Bus Interface
This register must be written as a DWord. Byte writes produce-undefined results. This register cannot be
written unless the controller is in the Halted state as indicated by the HCHalted bit. A write to this register
while the Run/Stop hit is set produces undefined results. Writes to this register also affect the SOF value.
In device mode (), this register is read-only and, the controller updates the FRINDEX[13–3] register from
the frame number indicated by the SOF marker. Whenever a SOF is received by the USB bus,
FRINDEX[13–3] is checked against the SOF marker. If FRINDEX[13–3] is different from the SOF
marker, FRINDEX[13–3] is set to the SOF value and FRINDEX[2–0] is cleared (that is, SOF for 1 msec
frame). If FRINDEX[13–3] is equal to the SOF value, FRINDEX[2–0] is incremented (that is, SOF for
125 µsec microframe.)
Table 24-19
when used in host mode.
24-22
Address MBAR2 0x74C
FRINDEX
31–14
Reset
Reset
Field
13–0
W
W
R
R
31
15
Reserved.
Frame index. The value in this register increments at the end of each time frame (for example, microframe).
Bits [N– 3] are used for the Frame List current index. This means that each location of the frame list is accessed 8
times (frames or microframes) before moving to the next index.
For the USB OTG module in device mode, the value is the current frame number of the last frame transmitted. It is
not used as an index.
In either mode, bits 2–0 indicate the current microframe.
0
0
illustrates values of N based on the value of the Frame List Size in the USBCMD register,
30
14
0
0
Table 24-18. USB Frame Index (FRINDEX) Register Field Descriptions
USBCMD[FS]
29
13
0
0
000
001
010
011
Figure 24-17. USB Frame Index (FRINDEX) Register
28
12
0
0
27
11
0
0
MCF5253 Reference Manual, Rev. 1
Table 24-19. FRINDEX N Values
1024 elements (4096 bytes)
512 elements (2048 bytes)
256 elements (1024 bytes)
128 elements (512 bytes)
26
10
0
0
Frame List Size
25
0
0
9
Description
24
0
0
8
FRINDEX
23
0
0
7
22
0
0
6
FRINDEX N value
21
0
0
5
12
11
10
9
20
0
0
4
19
0
0
3
Freescale Semiconductor
Access: User read/write
18
0
0
2
17
0
0
1
16
0
0
0