參數(shù)資料
型號(hào): UPD16664N-001
廠商: NEC Corp.
英文描述: 144/160/184/208-OUTPUT LCD COLUMN SEGMENT DRIVER WITH RAM
中文描述: 144/160/184/208-OUTPUT液晶柱段驅(qū)動(dòng)與RAM
文件頁(yè)數(shù): 7/52頁(yè)
文件大?。?/td> 347K
代理商: UPD16664N-001
Data Sheet S13780EJ1V0DS00
7
μ
PD16664
4. DATA BUS
The byte data ordering on the data bus is little endian, in common with most NEC and Intel buses.
4.1 16-bit Data Bus (BMODE = L)
Byte access
D
0
to D
7
D
8
to D
15
Address incrementing
direction
00000H
00002H
00004H
:
:
00001H
00003H
00005H
:
:
Word access
D
0
to D
7
D
8
to D
15
Address incrementing
direction
00000H
00002H
00004H
:
:
If the system accesses the
μ
PD16664 in word(16-bit) or byte(8-bit) units, /UBE (upper byte enable) and A
0
specify
whether bytes D
0
to D
7
or bytes D
8
to D
15
have valid data.
/CS
/OE
/WE
/UBE
A
0
MODE
I/O
D
0
to D
7
D
8
to D
15
H
X
X
X
X
Not selected
Hi-Z
Hi-Z
L
L
H
L
L
H
L
H
L
Read
Dout
Hi-Z
Dout
Dout
Dout
Hi-Z
L
H
L
L
L
H
L
H
L
Write
Din
X
Din
Din
Din
X
L
L
H
X
H
X
X
H
X
H
Output
Disable
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Remark
X : Don’t care
Hi-Z : High impedance
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