參數(shù)資料
型號: SSD1905QT2
廠商: Electronic Theatre Controls, Inc.
英文描述: LCD Graphics Controller CMOS
中文描述: LCD圖形控制器的CMOS
文件頁數(shù): 22/153頁
文件大小: 863K
代理商: SSD1905QT2
SSD1905
Rev 1.3
10/2002
SOLOMON
13
5.9
There are two data bus architectures, little endian and big endian. Little endian means the bytes at lower
addresses have lower significance. Big endian means the most significant byte has the lowest address.
Data Bus Organization
Table 5-9 : Data Bus Organization
Big endian
Little endian
D[15:8]
2N
2N + 1
D[7:0]
2N + 1
2N
N : Byte Address
Table 5-10 : Pin State Summary
MCU Mode (Endian)
Generic#1 (Big)
A0
X
X
X
X
X
X
X
X
X
X
X
X
0
0
1
0
0
1
0
1
0
0
1
0
0
1
0
0
1
0
0
0
1
0
0
1
RD/WR#
0
0
1
1
1
1
0
0
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
1
1
1
0
0
0
1
1
1
0
0
0
RD#
0
1
0
1
1
1
0
1
0
1
1
1
0
0
0
1
1
1
0
0
0
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
WE1#
1
1
1
0
0
1
1
1
1
0
0
1
0
1
0
0
1
0
0
0
1
0
0
1
0
0
1
0
0
1
0
1
0
0
1
0
WE0#
1
1
1
0
1
0
1
1
1
0
1
0
1
1
1
0
0
0
1
1
1
0
0
0
X
X
X
X
X
X
X
X
X
X
X
X
Operation
Word read
High byte read 2N
Low byte read 2N+1
Word write
High byte write 2N
Low byte write 2N+1
Word read
High byte read 2N+1
Low byte read 2N
Word write
High byte write 2N+1
Low byte write 2N
Word read
High byte read 2N
Low byte read 2N+1
Word write
High byte write 2N
Low byte write 2N+1
Word read
High byte read 2N+1
Low byte read 2N
Word write
High byte write 2N+1
Low byte write 2N
Word read
High byte read 2N
Low byte read 2N+1
Word write
High byte write 2N
Low byte write 2N+1
Word read
High byte read 2N+1
Low byte read 2N
Word write
High byte write 2N+1
Low byte write 2N
Generic#1 (Little)
Generic#2 (Big)
Generic#2 (Little)
MC68K#1 (Big)
MC68K#1 (Little)
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