參數(shù)資料
型號: DS3131
廠商: MAXIM INTEGRATED PRODUCTS INC
元件分類: Telecom IC:Other
英文描述: SPECIALTY TELECOM CIRCUIT, PBGA256
封裝: 27 X 27 MM, PLASTIC, BGA-256
文件頁數(shù): 167/174頁
文件大?。?/td> 1261K
代理商: DS3131
DS3131
92 of 174
Bit 5/Receive Done-Queue FIFO Flush (RDQF). When this bit is set to 1, the internal done-queue FIFO is
flushed by sending all data into the done queue. This bit must be set to 0 for proper operation.
0 = FIFO in normal operation
1 = FIFO is flushed
Bits 8 to 10/Receive Done-Queue Status-Bit Threshold Setting (RDQT0 to RDQT2). These bits determine
when the DMA sets the receive DMA done-queue write (RDQW) status bit in the status register for DMA
(SDMA) register.
000 = set the RDQW status bit after each descriptor write to the done queue
001 = set the RDQW status bit after 2 or more descriptors are written to the done queue
010 = set the RDQW status bit after 4 or more descriptors are written to the done queue
011 = set the RDQW status bit after 8 or more descriptors are written to the done queue
100 = set the RDQW status bit after 16 or more descriptors are written to the done queue
101 = set the RDQW status bit after 32 or more descriptors are written to the done queue
110 = set the RDQW status bit after 64 or more descriptors are written to the done queue
111 = set the RDQW status bit after 128 or more descriptors are written to the done queue
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