Hitachi HD64411 Q2 User Manual page 150

Quick 2d graphics renderer
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GBM = 0 (8 bits/pixel), MWX = 0 (512 pixels)
A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
Y upper coordinate
GBM = 0 (8 bits/pixel), MWX = 1 (1024 pixels)
A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
Y upper coordinate
GBM = 1 (16 bits/pixel), MWX = 0 (512 pixels)
A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
Y upper coordinate
GBM = 1 (16 bits/pixel), MWX = 1 (1024 pixels)
A22 A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0
Y upper coordinate
Figure 5-3
Correspondence between Memory Physical Addresses (Bytes) and
Rendering Coordinates and Multi-Valued Source Coordinates
X upper coordinate Y lower coordinate
X upper coordinate
X upper coordinate
X upper coordinate
Upper line: Memory physical addresses (bytes) A22 to A1, A0
Lower line: Logical coordinates (X, Y)
A0 is an LSI internal signal, indicating the LSB of the byte address.
When GBM = 0, the X lower coordinate value must be an even number.
X lower coordinate
Y lower coordinate
X lower coordinate
Y lower coordinate X lower coordinate
Y lower coordinate X lower coordinate
0
0
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