參數(shù)資料
型號: HD667B66R
廠商: Hitachi,Ltd.
英文描述: 132 x 176-dot Graphics LCD Controller/Driver for 65K Colors
中文描述: 132 × 176點圖形LCD控制器/驅動器的65K色
文件頁數(shù): 56/97頁
文件大小: 681K
代理商: HD667B66R
HD66766R Rev. 1.0-1 / September 2002
56
4.
Write mode 4: AM = 1, LG2-0 = 110/111
This mode is used when a vertical comparison is performed between the write data and the set value of
the compare resister ( CP15-0 ) to write the data . When the result by the comparison in a byte unit
satisfies the condition, the write data sent from the microcomputer is written to the GRAM. In this
operation, write data mask function ( WM15-0 ) are also enabled. After writing, the address counter
( AC ) automatically increments by 256, and automatically jumps to the upper-right edge ( I/D = 1) or
upper-left edge ( I/D = 0 ) following the I/D bit after it has reached the lower edge of the GRAM.
Figure 42Writing Operation of Write Mode 4
Operation Examples:
1) I/D = "1", AM = "1" , LG2-0 = "111" ( Unmatched write )
2) WM15-0 = "0000"H
2) CP15-0 = "2860"H
3) AC = "0000"H
WM15
WM0
0 0 0 0 0 0 0 0 0 0 0 0
DB15
1 0 0 1 1 0 0 1
CP15
CP0
0 0 1 0 1 0 0 0
C
C
R
R
( Unmatched )
( Unmatched )
1 0 0 1 1 0 0 1
* * * * * * * * * * * *
GRAM
"0000"H
"0100"H
"AF00"H
"0000"H
"0001"H
0 0 0 0
0 1 1 0 0 0 0 0
1 0 0 1 1 1 1 1
1 0 0 1 1 1 1 1
0 0 1 0 1 0 0 0 0 1 1 0 0 0 0 0
1 0 0 1 1 0 0 1 1 0 0 1 1 1 1 1
* * * * * * * * * * * * * * * *
* * * *
Write - data mask :
Compare register :
Write data (1) :
Write data (2) :
Compare operation
Conditional replacement
Conditional replacement
Compare operation
Notes: 1. The bit area data in the GRAM indicated by (*) is not changed.
2. After writing to address "AF00"H the AC jumps to "0001"H.
Write data (1)
Write data (2)
DB0
相關PDF資料
PDF描述
HD66780FH LAMPS, STACKABLE INDICATOR
HD66780FS Dot Matrix Liquid Crystal Display Controller and Driver
HD66780 Dot Matrix Liquid Crystal Display Controller and Driver
HD66841 LVIC-II (LCD Video Interface Controller)(LCD視頻控制器)
HD68000Y-10 MPU(MICRO PROCESSING UNIT)
相關代理商/技術參數(shù)
參數(shù)描述
HD66840 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
HD66840F25 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Controller
HD66840F30 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Controller
HD66841FP 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Controller
HD66841FS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Controller