參數(shù)資料
型號： HD64646
廠商： Hitachi,Ltd.
英文描述： LCTC (LCD Timing Controller)
中文描述： LCTC（LCD定時控制器）
文件頁數(shù)： 38/50頁
文件大小： 156K
代理商： HD64646
HD64645/64646
38
Restrictions on Programming Internal Registers
Note when programming that the values you can write into the internal registers are restricted as shown in
Table 12.
Table 12
Restrictions on Writing Values into the Internal Registers
Function
Restrictions
1 < Nhd < Nht + 1
≤
256
Nhd + 16
m
*1
≤
Nht + 1
(No. of vertical dots)
×
(No. of horizontal dots)
×
(frame frequency; fFRM)
≤
(data transfer speed; V)
1
2
Register
Display format
R0, R1
*2
×
(Nd + 1)
×
Nhd
×
*3
f
FRM
≤
V
8
16
R1, R19, R20
Nhd
≤
Nir
0
≤
Ndi
≤
511
0
≤
Ncs
≤
Nce
Nce
≤
Nr
Nsr
≤
Nr
0
≤
Nir
≤
255
R1, R18
R19, R20
Cursor control
R10, R11
R10, R9
Smooth scroll
R21, R9
Memory width set
Notes: 1. m varies according to the modes. See the following table.
Mode No.
R18
m
5, 9
1
1, 6, 7, 8, 10, 11, 12, 13
2
2, 3, 4
4
2. Set 1 when an LCD screen is a single screen, and set 2 when dual. Modes are classified as
shown in the following table.
Mode No.
Value
5, 6, 7, 8, 9, 10, 11, 12
1
1, 2, 3, 4, 13
2
3. Set 8 when a character is constructed with 8 dots, and set 16 when with 16 dots. Modes are
classified as shown in the following table.
Mode No.
Value
1, 5, 9
8
2, 3, 4, 6, 7, 8, 10, 11, 12, 13
16
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