參數(shù)資料
型號: HD66787
廠商: Renesas Technology Corp.
英文描述: 528-channel, One-chip Driver with 262,144-color Display RAM and Power Supply Circuit for Low-temperature Poli-Si TFT (LTPS-TFT) Panels with Incorporat
中文描述: 528與262,144色顯示RAM和低電源電路通道,單芯片驅(qū)動器的溫度和旋鈴聲非晶硅TFT(薄膜晶體管)與Incorporat小組
文件頁數(shù): 108/159頁
文件大?。?/td> 1607K
代理商: HD66787
HD66787
Preliminary
Rev.0.22, May.23.2003, page 108 of 159
Comparison of Normal and High-Speed RAM Write Operations
Normal RAM Write
(HWM=0)
High-Speed RAM Write (HWM=1)
Logical operation function
Available
Not available
Compare operation function
Available
Not available
BGR function
Available
Available
Write mask function
Available
Available
RAM address set
Specified by one
word
ID0 bit=0: Set the lower two bits to 11
ID0 bit=1: Set the lower two bits to 00
RAM read
Read by one word
Not available
RAM write
Write by one word
Dummy write operations may be required depending
on the specified window-address range
Window address
Set by one word
Horizontal range(HSA/HSE): more than four words
Number of horizontal writing : 4N (N>=2)
External display interface
Available
Available
AM Setting
AM = 1/0
AM = 0
High-Speed RAM Write with Window Address Function
To rewrite the data in an arbitrary rectangular area of RAM consecutively in high speed, the number of
RAM access should be made 4 multiple times. Accordingly some window-address range may require
dummy write operation to make the RAM access 4 multiple times. The number of dummy write is set
when setting the window address as follows.
The horizontal window-address range specifying bits (HSA1-0, HEA1-0) specify the number of dummy
write operations executed at the start and end of the data to write to RAM. The total RAM access must be
4 multiple times per line.
Number of Dummy Write Operations in High-Speed RAM Write (HSA Bits)
HSA1
HSA0
Number of Dummy Write Operations
inserted
0
0
0
0
1
1
1
0
2
1
1
3
相關(guān)PDF資料
PDF描述
HD66840 Peripheral IC
HD66840F25 LCD Controller
HD66840F30 LCD Controller
HD66841FP LCD Controller
HD66841FS LCD Controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD66789 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:528-channel, One-chip Driver for Amorphous TFT Panels with 262,144-color display RAM, Power Supply Circuit, and Gate Circuit
HD667A66R 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:132 x 176-dot Graphics LCD Controller/Driver for 65K Colors
HD667B66R 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:132 x 176-dot Graphics LCD Controller/Driver for 65K Colors
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