Electronic Components Datasheet Search |
|
NJU6824 Datasheet(PDF) 26 Page - New Japan Radio |
|
NJU6824 Datasheet(HTML) 26 Page - New Japan Radio |
26 / 110 page NJU6824 - 26 - (7) Window addressing mode Window area must be designated before RAM access. In the window addressing mode, the address space of the DDRAM designated by the start and end point is defined. The start point is determined by the “column address” and “row address” instructions, and the end point is determined by the “Window end column address “and ”Window end row address” instructions. The setting for the window addressing is listed in the following. 1. “Increment control” instruction set (HV, XD, YD) 2. Set the start point by the “column address” and “row address” instructions 3. Set the end point by the “Window end column address” and “Window end row address” instructions 4. Enable to access to the DDRAM in the window addressing mode In addition, the read-modify-write operation is available by setting “AIM” register to ”L” in the “Increment control” instruction. For the window area designation, the address directions of RAM (HV, XD, YD) must be set first, and Column address and Row of Start point must be set second, Column address and Row of Stop point must be set third, then RAM should be accessed. Low address must be set first and High address must be set second in all of addresses. The directions of HV, XD, YD should be check to keep the area in RAM. And in the window addressing mode, the following start and end point must be maintained to abide a malfunction. column address (X, Y) Start point End point Window display area (X, Y) Whole DDRAM area Fig7 (8) Reverse display ON/OFF The “Reverse display ON/OFF” function is used to reverse the display data without changing the contents of the DDRAM. Table9 REV Display DDRAM data → Display data 0 0 0 Normal 1 1 0 1 1 Reverse 1 0 (9) Address directions of RAM access (Display rotation) The bellow picture shows display image after set of HV, XD and YD for address directions. The display data from CPU can be written into RAM with rotation to 90 degrees or 180 degrees or 270 degrees, and also mirrored. The address directions of RAM access is set by HV, XD and YD. * : The segments of Icon are not rotated. |
Similar Part No. - NJU6824 |
|
Similar Description - NJU6824 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |