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): 171/174頁
文件大小: 1261K
代理商: DS3131
DS3131
96 of 174
Bit 14/Indirect Access Read/Write (IARW). When the host wishes to read data from the internal receive DMA
configuration RAM, this bit should be written to 1 by the host. This causes the device to begin obtaining the data
from the channel location indicated by the HCID bits. During the read access, the IAB bit is set to 1. Once the data
is ready to be read from the RDMAC register, the IAB bit is set to 0. When the host wishes to write data to the
internal receive DMA configuration RAM, this bit should be written to 0 by the host. This causes the device to
take the data that is currently present in the RDMAC register and write it to the channel location indicated by the
HCID bits. When the device has completed the write, the IAB bit is set to 0.
Bit 15/Indirect Access Busy (IAB). When an indirect read or write access is in progress, this read-only bit is set
to 1. During a read operation, this bit is set to 1 until the data is ready to be read. It is set to 0 when the data is
ready to be read. During a write operation, this bit is set to 1 while the write is taking place. It is set to 0 once the
write operation has completed.
Register Name:
RDMAC
Register Description:
Receive DMA Channel Configuration
Register Address:
0774h
Bit #
7
6
5
4
3
2
1
0
Name
D7
D6
D5
D4
D3
D2
D1
D0
Default
Bit #
15
14
13
12
11
10
9
8
Name
D15
D14
D13
D12
D11
D10
D9
D8
Default
Note:
Bits that are underlined are read-only, all other bits are read-write.
Bits 0 to 15/Receive DMA Configuration RAM Data (D0 to D15). Data that is written to or read from the
Receive DMA Configuration RAM.
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