參數(shù)資料
型號: L64007
廠商: LSI CORP
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP160
封裝: PLASTIC, QFP-160
文件頁數(shù): 23/166頁
文件大?。?/td> 1015K
代理商: L64007
register
37 Wed May 28 17:37:25 1997
Draft 1/21/97
L64007 MPEG-2, DVB, JSAT Transport Demultiplexer Technical Manual
4-37
PRE.4 for Rev. D
Copyright 1997 by LSI Logic Corporation. All rights reserved.
RES
Reserved
15
These bits are reserved.
CMODE
Cache Operation Mode
[14:12]
These three bits determine the Cache operation mode of
the L64007. After reset, these bits are 000.
CYC
DRAM Bus Cycle Mode
[11:10]
These two bits determine the bus cycle type that the
DRAM interface port generates when the L64007
accesses the external DRAM device attached to its
DRAM port. After reset, these bits are 00.
PAGE
DRAM Page Break Size
[9:8]
These bits determine the page-break size of the DRAM
device attached to L64007’s DRAM interface port. After
reset, these bits are 00.
Bit Settings
Cache Operation Mode
Description
000
Normal
Uses the Cache normally.
001
Flash
Stores back the cache line that was
hit. Generally used when switching
contexts.
010
Invalidate
Accessing the cache line in this mode
invalidates the line.
011
TAG Directly
The content of the TAG address is
modied. Generally used to initialize
the Cache after reset. All Cache lines
must be accessed.
100
DRAM Directly
Bypasses the Cache and directly
accesses the DRAM.
Bit Settings
Clock Cycles per CAS
00
1.5
01
EDO, 1
10
Fast Page mode, 1
Bit Settings
Page Break (Words)
00
256
01
512
10
1024
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