參數(shù)資料
型號: LC74736PT
元件分類: 畫面疊加
英文描述: ON-SCREEN DISPLAY IC, PQFP100
封裝: 14 X 14 MM, TQFP-100
文件頁數(shù): 45/106頁
文件大小: 405K
代理商: LC74736PT
LC74736PT
No.A0569-43/106
28 COMMAND33 (Main screen 2: horizontal display start position setting command)
(1) First byte
Content
DA0 to 7
Register
State
Function
Notes
7
-
1
6
-
0
5
-
1
4
-
1
Command 3 identification code
Main screen: horizontal display start position setting
3
-
0
2
-
1
-
1
Extended command 3 identification code
0
HPM28
1
(2) Second byte
Content
DA0 to 7
Register
State
Function
Notes
0
7
HPM27
1
0
6
HPM26
1
0
5
HPM25
1
0
4
HPM24
1
0
3
HPM23
1
0
2
HPM22
1
0
1
HPM21
1
0
HPM20
(LSB)
1
The horizontal display start position, HSM2, is given by:
9
HSM2=1Tc
×(Σ2
nHPM2n)+ α
n=0
α=45Tc(QVGA)
41Tc(WVGA)
Tc: The input clock frequency in operating mode.
Setting disable range
QVGA
WVGA
Sub H 0 character
00HEX
Sub H 1 character
00 to 05HEX
00 to 15HEX
(00 to 0CHEX)
Sub H 2 characters 00 to 0DHEX
00 to 2CHEX
(00 to 1CHEX)
Sub H 3 characters 00 to 15HEX
Sub H 4 characters 00 to 1DHEX
The values in parentheses apply when ROM access
No. 2 and No. 3 are set.
Main screen 2
The horizontal display start position is
specified by the 10 bits HPM29 to HPM20.
The weight of the LSB is 1TC.
This setting applies in screen units.
*: This resistor is set to the all bits zero state when the IC is reset by the RST pin.
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