參數(shù)資料
型號(hào): PT7A6632J
廠商: Pericom Semiconductor Corp.
英文描述: PT7A6632 32-Channel HDLC Controller
中文描述: PT7A6632 32通道HDLC控制器
文件頁(yè)數(shù): 29/61頁(yè)
文件大?。?/td> 379K
代理商: PT7A6632J
Data Sheet
PT7A6632 32-Channel HDLC Controller
PT019(05/02)
Ver:2
29
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Table 9. Examples of FILL/MASK Options
FILL/MASK Byte (Rate Definition)
The FILL/MASK byte is used as a masking pattern on the
HDLC-formatted (including FLAG, header, data, CRC, and
ABORT code) or non-HDLC-formatted data in order to adapt
subrates that are multiples of 8kb/s to the 64kb/s rate. The 8-
bit sequence is applied to data on a bit by bit basis to insert 1
(FILL/MASK bit = 0) for time fill, or insert data bit (FILL/
MASK = 1). See an example in Figure 6 in Section “Transmit
Bit-Level Processor” and Table 9.
For bit-oriented signaling mode, the FILL/MASK should be
set as 1111 1111. If not, the PT7A6632 will not override any
other FILL/MASK pattern.
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