參數(shù)資料
型號: VT6305
廠商: Electronic Theatre Controls, Inc.
英文描述: PCI 1394 Host Controller
中文描述: 1394主控制器的PCI
文件頁數(shù): 17/35頁
文件大?。?/td> 220K
代理商: VT6305
Revision 0.2
March 10, 2000
-
12-
Register Descriptions
Technologies, Inc.
WeConnect
Offset D - Latency Timer
(00h)
..................................... RW
7-4
Latency Timer Count
PCI burst cycles generated by the VT6305 can last
indefinitely as long as PCI GNT# remains active. If
GNT# is negated after the burst is initiated, the
VT6305 limits the duration of the burst to the
number of PCI Bus clocks specified in this field.
3-0
Reserved
......................................always reads 0
Offset E - Header Type
(00h)
......................................... RO
Offset 13-10 - Base Address – 1394 Register Space ...... RW
31-7 Base Address (128-Byte Space)
..............default = 0
6-4
Reserved
......................................always reads 0
3
Prefetechable
....................................always reads 0
Reads 0 to indicate that the 1394 register space is not
prefetchable.
2-1
Type
......................................always reads 0
Reads 0 to indicate that the 1394 register space may
be located anywhere in the 32-bit address space.
0
Resource Type
..................................always reads 0
Reads 0 to indicate a request for memory space.
Offset 3C - Interrupt Line
(00h)
..................................... RO
Offset 3D - Interrupt Pin
(01h=Drives INTA#)
.............. RO
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