Datasheet

Preliminary
Subject To Change Without Notice
12864Z
- 19 -
11 Graphic Display Data Ram Address Map
The GDDRAM is a bit mapped static RAM holding the bit pattern to be displayed. The size of the RAM is
128x80x4 bits. For mechanical flexibility, re-mapping on both Segment and Common outputs can be
selected by software. (Refer to Table 3-7 for GDDRAM address map description)
Table 4 – GDDRAM address map showing Horizontal Address Increment A[2]=0, Column Address Re-map A[0]=0, Nibble
Re-map A[1]=0, COM Re-map A[4]=0, and Display Start Line=00H (Data byte sequence: D0, D1, … , D5118, D5119)
Table 5 – GDDRAM address map showing Horizontal Address Increment A[2]=1, Column Address Re-map A[0]=0, Nibble
Re-map A[1]=0, COM Re-map A[4]=0, and Display Start Line=00H (Data byte sequence: D0, D1, … , D5118, D5119)
Table 6 – GDDRAM address map showing Horizontal Address Increment A[2]=0, Column Address Re-map A[0]=1, Nibble
Re-map A[1]=1, COM Re-map A[4]=0, and Display Start Line=00H (Data byte sequence: D0, D1, … , D5118, D5119)