Programming Model
MOTOROLA
LCD Controller
19-21
19.4.3 Virtual Page Width Register
The Virtual Page Width Register defines the width of the virtual page for the LCD panel. See Figure 19-2.
Table 19-10. Size Register Description
Name
Description
Reserved
Bits 31–26
Reserved—These bits are reserved and should read 0.
XMAX
Bits 25–20
Screen Width Divided by 16
—Holds screen x-axis size, divided by 16. For black-and-white panels
(1 bpp), XMAX [20] is ignored, forcing the x-axis of the screen size to be a multiple of 32 pixels/line.
Reserved
Bits 19–9
Reserved—These bits are reserved and should read 0.
YMAX
Bits 8–0
Screen Height
—Specifies the height of the LCD panel in terms of pixels or lines. The lines are
numbered from 1 to YMAX for a total of YMAX lines.
VPW
Virtual Page Width Register
Addr
0x00205008
BIT
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
TYPE
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
r
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
BIT
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
VPW
TYPE
r
r
r
r
r
r
rw
rw
rw
rw
rw
rw
rw
rw
rw
rw
RESET
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0x0000
Table 19-11. Virtual Page Width Register Description
Name
Description
Reserved
Bits 31–10
Reserved—These bits are reserved and should read 0.
VPW
Bits 9–0
Virtual Page Width
—Defines the virtual page width of the LCD panel. The VPW bits represent the
number of 32-bit words required to hold the data for one virtual line. VPW is used in calculating the
starting address representing the beginning of each displayed line.
Summary of Contents for DragonBall MC9328MX1
Page 68: ...1 12 MC9328MX1 Reference Manual MOTOROLA Introduction ...
Page 86: ...2 18 MC9328MX1 Reference Manual MOTOROLA Signal Descriptions and Pin Assignments ...
Page 116: ...3 30 MC9328MX1 Reference Manual MOTOROLA Memory Map ...
Page 126: ...4 10 MC9328MX1 Reference Manual MOTOROLA ARM920T Processor ...
Page 160: ...8 8 MC9328MX1 Reference Manual MOTOROLA System Control ...
Page 272: ...13 32 MC9328MX1 Reference Manual MOTOROLA DMA Controller ...
Page 281: ...Programming Model MOTOROLA Watchdog Timer Module 14 9 ...
Page 282: ...14 10 MC9328MX1 Reference Manual MOTOROLA Watchdog Timer Module ...
Page 300: ...15 18 MC9328MX1 Reference Manual MOTOROLA Analog Signal Processor ASP ...
Page 438: ...18 16 MC9328MX1 Reference Manual MOTOROLA Serial Peripheral Interface Modules SPI 1 and SPI 2 ...
Page 478: ...19 40 MC9328MX1 Reference Manual MOTOROLA LCD Controller ...
Page 574: ...21 32 MC9328MX1 Reference Manual MOTOROLA Memory Stick Host Controller MSHC Module ...
Page 598: ...23 16 MC9328MX1 Reference Manual MOTOROLA Real Time Clock RTC ...
Page 670: ...24 72 MC9328MX1 Reference Manual MOTOROLA SDRAM Memory Controller ...
Page 726: ...25 56 MC9328MX1 Reference Manual MOTOROLA SmartCard Interface Module SIM ...
Page 736: ...26 10 MC9328MX1 Reference Manual MOTOROLA General Purpose Timers ...
Page 854: ...29 18 MC9328MX1 Reference Manual MOTOROLA I2C Module ...
Page 900: ...30 46 MC9328MX1 Reference Manual MOTOROLA Synchronous Serial Interface SSI ...
Page 942: ...32 26 MC9328MX1 Reference Manual MOTOROLA GPIO Module and I O Multiplexer IOMUX ...