MCF5253CVM140 Freescale Semiconductor, MCF5253CVM140 Datasheet - Page 561

• Manufacturer Part Number: MCF5253CVM140
• Description: IC MPU 32BIT 140MHZ 225-MAPBGA
• Manufacturer: Freescale Semiconductor
• Series: MCF525xr

Specifications of MCF5253CVM140

• 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: -40°C ~ 85°C
• Package / Case: 225-MAPBGA
• Family Name: MCF5xxx
• Device Core: ColdFire V2
• Device Core Size: 32b
• Frequency (max): 140MHz
• Instruction Set Architecture: RISC
• Supply Voltage 1 (typ): 1.2/3.3V
• Operating Supply Voltage (max): 1.32/3.6V
• Operating Supply Voltage (min): 1.08/3V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 225
• Package Type: MA-BGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of I /o: -
• Eeprom Size: -
• Program Memory Size: -
• Lead Free Status / Rohs Status: Compliant

This occurs when one of the following events occur: The transaction translator responds to a
complete-split transaction with one of the following:
Each time the host controller visits a queue head in this state (once within the Execute Transaction state),
bit-wise ANDs QH[S-mask] with cMicroFrameBit to determine whether to execute a start-split. If the
result is non-zero, then the host controller issues a start-split transaction. If the PID Code field indicates
an IN transaction, the host controller must zero-out the QH[S-bytes] field. After the split-transaction has
been executed, the host controller sets up state in the queue head to track the progress of the complete-split
phase of the split transaction. Specifically, it records the expected frame number into QH[FrameTag] field,
sets C-prog-mask to zero (0x00), and exits this state. Note that the host controller must not adjust the value
of Cerr as a result of completion of a start-split transaction.
24.9.12.2.7 Periodic Interrupt—Do-Complete-Split
This state is entered unconditionally from the Do Start Split state after a start-split transaction is executed
on the bus. Each time the host controller visits a queue head in this state (once within the Execute
Transaction state), it checks to determine whether a complete-split transaction should be executed now.
There are four tests to determine whether a complete-split transaction should be executed.
Freescale Semiconductor
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NAK. A NAK response is a propagation of the full- or low-speed endpoint's NAK response.
ACK. An ACK response is a propagation of the full- or low-speed endpoint's ACK response. Only
occurs on an OUT endpoint.
DATA 0/1. Only occurs for INs. Indicates that this is the last of the data from the endpoint for this
split transaction.
ERR. The transaction on the low-/full-speed link below the transaction translator had a failure (for
example, timeout, bad CRC, etc.).
NYET (and Last). The host controller issued the last complete-split and the transaction translator
responded with a NYET handshake. This means that the start-split was not correctly received by
the transaction translator, so it never executed a transaction to the full- or low-speed endpoint, see
Section 24.9.12.2.7, “Periodic
Test A. cMicroFrameBit is bit-wise ANDed with QH[C-mask] field. A non-zero result indicates
that the software scheduled a complete-split for this endpoint, during this micro-frame.
Test B. QH[FrameTag] is compared with the current contents of FRINDEX[7:3]. An equal
indicates a match.
Test C. The complete-split progress bit vector is checked to determine whether the previous bit is
set, indicating that the previous complete-split was appropriately executed. An example algorithm
for this test is provided below:
Algorithm Boolean CheckPreviousBit(QH.C-prog-mask, QH.C-mask, cMicroFrameBit)
Begin
-- Return values:
-- TRUE - no error
-- FALSE - error
--
Boolean rvalue = TRUE;
previousBit = cMicroframeBit logical-rotate-right(1)
-- Bit-wise anding previousBit with C-mask indicates
-- whether there was an intent
MCF5253 Reference Manual, Rev. 1
Interrupt—Do-Complete-Split”
for the definition of 'Last'.
Universal Serial Bus Interface
24-99