MPC8313ECZQADDC Freescale Semiconductor, MPC8313ECZQADDC Datasheet - Page 1028
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MPC8313ECZQADDC
Manufacturer Part Number
MPC8313ECZQADDC
Description
Microprocessors - MPU 8313 REV2.2 PB ENC EXT
Manufacturer
Freescale Semiconductor
Datasheet
1.MPC8313CZQADDC.pdf
(1214 pages)
Specifications of MPC8313ECZQADDC
Processor Series
MPC8313E
Core
e300
Data Bus Width
16 bit
Maximum Clock Frequency
133 MHz
Program Memory Size
16 KB
Data Ram Size
16 KB
Interface Type
I2C
Mounting Style
SMD/SMT
Package / Case
PBGA
Number Of Programmable I/os
32
Number Of Timers
4
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Universal Serial Bus Interface
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.
16.6.12.2.7 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.
16-100
•
•
•
•
•
•
•
•
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 Periodic Interrupt - Do Complete Split for the definition of 'Last'.
Test A. cMicroFrameBit is bit-wise ANDed with QH[C-mask] field. A non-zero result indicates
that 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
MPC8313E PowerQUICC™ II Pro Integrated Processor Family Reference Manual, Rev. 2
Freescale Semiconductor
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