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MTV018 Datenblatt(PDF) 5 Page - List of Unclassifed Manufacturers |
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MTV018 Datenblatt(HTML) 5 Page - List of Unclassifed Manufacturers |
5 / 16 page 5/16 MTV018 Revision 4.0 10/21/1999 MTV018 MYSON TECHNOLOGY The data transmission is permitted to change from format (a) to format (b) and (c), or from format (b) to format (a), but not from format (c) back to format (a) and (b). The alternation between transmission formats is config- ured as the state diagram shown in Figure 3 on page 5. 3.2 Address bus administrator The administrator manages bus address arbitration of internal registers or user fonts RAM during external data write in. The external data write through serial data interface to registers must be synchronized by inter- nal display timing. In addition, the administrator also provides automatic increment to address bus when exter- nal write using format (c). 3.3 Vertical display control The vertical display control can generates different vertical display sizes for most display standards in current monitors. The vertical display size is calculated with the information of double character height bit(CHS), verti- TABLE 1. The configuration of transmission formats. Address b7 b6 b5 b4 b3 b2 b1 b0 Format Address Bytes of Display Reg. Row 1 0 0 x R3 R2 R1 R0 a,b,c Columnab 0 0 x C4 C3 C2 C1 C0 a,b Columnc 0 1 x C4 C3 C2 C1 C0 c Attribute Bytes of Display Reg. Row 1 0 1 x R3 R2 R1 R0 a,b,c Columnab 0 0 x C4 C3 C2 C1 C0 a,b Columnc 0 1 x C4 C3 C2 C1 C0 c User Fonts RAM Row 1 1 x x x R2 R1 R0 a,b,c Columnab 0 0 C5 C4 C3 C2 C1 C0 a,b Columnc 0 1 C5 C4 C3 C2 C1 C0 c Initiate ROW COL c COL ab DA c DA ab 1, X 0, 1 0, 1 1, X 1, X format (a) format (b) format (c) X, X 0, X Input = b7, b6 0, 0 FIGURE 3. Transmission state diagram |
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