參數(shù)資料
型號: MC92600JUB
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: SPECIALTY MICROPROCESSOR CIRCUIT, PBGA217
封裝: 23 X 23 MM, 2.32 MM HEIGHT, 1.27 MM PITCH, PLASTIC, BGA-217
文件頁數(shù): 28/98頁
文件大?。?/td> 1018K
代理商: MC92600JUB
3-6
MC92600 SERDES User’s Manual
MOTOROLA
Alignment Modes
type is not available in TBI mode. The receiver restarts its alignment procedure and
halts data ow until alignment is achieved.
Finally, the user may force loss of alignment by asserting WSE_GEN high and
XMIT_x_K low on all four receivers simultaneously. The receiver restarts its
alignment procedure and halts data ow until alignment is achieved.
When establishing byte alignment, or when data ow is halted due to misalignment, the
receiver’s RECV_x_ERR signal is asserted high and the “Not Byte Sync” error is reported
3.3.1.2
Byte-Aligned with Idle Realignment and Disparity Word
Alignment
This alignment mode is the same as the one described in Section 3.3.1.1, “Byte-Aligned
with Realignment.” The difference in this alignment mode is related to the style of word
synchronization.
Word
synchronization
between
receivers
is
accomplished
by
synchronizing the received characters to a unique word synchronization event in the
incoming character stream. In this byte alignment mode, the word synchronization event is
dened to be a disparity-based idle sequence as described in Section 2.4.1, “Transmitting
information on word synchronization.
3.3.1.3
Non-Aligned
In this mode no attempt is made to align the incoming data stream. The bits are simply
accumulated into 10-bit characters and forwarded. This mode should be used only with
10-bit interface mode (TBIE = high) and with word synchronization disabled (WSE =
low).
3.3.2
Word Alignment
The four receivers in the MC92600 can be used cooperatively to receive 32-bit aligned
word transfers. Word alignment is enabled by setting the word synchronization enable
input, WSE, high.
Word alignment, or word synchronization, is possible in both byte interface mode or in TBI
mode. However, word synchronization is dependent on the detection of simultaneously
transmitted word synchronization events that contain idle characters. Therefore, if
operating in TBI mode, the idle character must be a supported member of the code set.
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