參數(shù)資料
型號: TPU3040
廠商: MICRONAS SEMICONDUCTOR HOLDING AG
英文描述: CONNECTOR ACCESSORY
中文描述: 連接器附件
文件頁數(shù): 47/73頁
文件大?。?/td> 1183K
代理商: TPU3040
TPU 3035, TPU 3040
PRELIMINARY DATA SHEET
MICRONAS INTERMETALL
47
4.13. Ghost Row Organization
Page-related ghost rows are stored in blocks of 128
byte. These ghost blocks are linked together using 2
byte ghost row pointers. The first pointer can be found
in the basic page, all following pointers are part of the
block header. A zero pointer indicates the end of the
chain.
Fig. 4–10:
Ghost Row Organization
page 100
ghost block
Page Table
page pointer
ghost
pointer
ghost
pointer
ghost block
0000
Every ghost block contains 3 ghost rows which can be
identified by 3 row identification bytes in the block
header. The row identification contains designation
code and row number. The row number is reduced to a
page. If the memory manager removes a page from
memory, the linked ghost blocks will also be removed.
Table 4–21:
Ghost Row Identification
Row Number Tag
Row
000
empty
001
row 25
010
row 26
011
row 27
100
row 28
101
row 29
110
row 30
111
row 31
Fig. 4–11:
Ghost Block Structure
40 byte row 1 data
40 byte row 2 data
40 byte row 3 data
8 byte block header
ghost row pointer
row 1
row 2
row 3
4-bit designation code
3-bit row number
‘a(chǎn)a’
‘a(chǎn)a’
‘a(chǎn)a’
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