參數(shù)資料
型號(hào): TSB43AA82A1
廠商: Texas Instruments, Inc.
英文描述: 1394 integrated PHY and link layer controller(1394集成PHY和鏈路層控制器)
中文描述: 1394綜合物理層和鏈路層控制器(1394集成物理層和鏈路層控制器)
文件頁數(shù): 54/146頁
文件大?。?/td> 597K
代理商: TSB43AA82A1
328
BITS
DESCRIPTION
DIR
ACRONYM
1315
DTF Page Size
R/W
DTF transmit page size. DTF Page Size specifies the underlying page size of data buffer memory. Any
one request packet is not permitted to cross a page boundary. A DTF Page Size value of zero indicates
that the underlying page size is not specified. Otherwise, the page size (in bytes) is 2(DTFPageSize + 8).
1631
DTF_BlockSize/
DTF_BlockCount
R/W
DTF transmit block size / DTF transmit block count. When LngBlk in DMA control (90h) is set to 0, this
value is the DTF_BlockSize. DTF_BlockSize specifies the transmitted blocksize value in bytes. When
LngBlk is set to 1, the value is the DTF_BlockCount. DTF_BlockCount specifies the number of
transmitted blocks. DTF_BlockCount is decremented during transmission automatically.
Table 32. DTFCtl: DTF Packetizer Transmit Control
READ VALUE
WRITE VALUE
DTFCTL0
DTFCTL1
STATE
DTFCTL0
DTFCTL1
STATE
0
0
IDLE
0
0
No operation
1
0
BUSY
1
0
Start/restart—resume state
1
1
PEND
1
1
Init-start—from idle
0
1
PAGEFAULT
0
1
Abort
Start
Reset
IDLE
[Complete]
BUSY
Init-start
PEND
Restart
[Abort, Bus Reset,
Error (Ack, Retry,
Split Timeout)]
Abort
Figure 31. Automatically Creating an SBP-2 Compliant Request for a Block Packet
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