参数资料
型号: DS3131
厂商: MAXIM INTEGRATED PRODUCTS INC
元件分类: Telecom IC:Other
英文描述: SPECIALTY TELECOM CIRCUIT, PBGA256
封装: 27 X 27 MM, PLASTIC, BGA-256
文件页数: 166/174页
文件大小: 1261K
代理商: DS3131
DS3131
91 of 174
Register Name:
RDQFFT
Register Description:
Receive Done-Queue FIFO Flush Timer
Register Address:
0744h
Bit #
7
6
5
4
3
2
1
0
Name
TC7
TC6
TC5
TC4
TC3
TC2
TC1
TC0
Default
0
Bit #
15
14
13
12
11
10
9
8
Name
TC15
TC14
TC13
TC12
TC11
TC10
TC9
TC8
Default
0
Note:
Bits that are underlined are read-only, all other bits are read-write.
Bits 0 to 15/Receive Done-Queue FIFO Flush Timer Control Bits (TC0 to TC15). Please note that on system
reset, the timer is set to 0000h, which is defined as an illegal setting. If the receive done-queue FIFO is to be
activated (RDQFE = 1), then the host must first configure the timer to a proper state and then set the RDQFE bit to
one.
0000h = illegal setting
0001h = timer count resets to 1
FFFFh = timer count resets to 65,536
Register Name:
RDMAQ
Register Description:
Receive DMA Queues Control
Register Address:
0780h
Bit #
7
6
5
4
3
2
1
0
Name
reserved
RDQF
RDQFE
RFQSF
RFQLF
reserved
RFQFE
Default
0
Bit #
15
14
13
12
11
10
9
8
Name
reserved
RDQT2
RDQT1
RDQT0
Default
0
Note:
Bits that are underlined are read-only, all other bits are read-write.
Bit 0/Receive Free-Queue FIFO Enable (RFQFE). See Section 9.2.3 for details.
Bit 2/Receive Free-Queue Large Buffer FIFO Flush (RFQLF). See Section 9.2.3 for details.
Bit 3/Receive Free-Queue Small Buffer FIFO Flush (RFQSF). See Section 9.2.3 for details.
Bit 4/Receive Done-Queue FIFO Enable (RDQFE). To enable the DMA to burst write descriptors to the done
queue, this bit must be set to 1. If this bit is set to 0, messages are written one at a time.
0 = done-queue burst-write disabled
1 = done-queue burst-write enabled
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