
Liquid Crystal Display Controller (LCDC)
22-16
Freescale Semiconductor
22.3.12 LCDC PWM Contrast Control Register (LCD_PCCR)
The PWM contrast control register is used to control the signal output at the contrast pin, which controls
the contrast of the LCD panel.
22.3.13 LCDC DMA Control Register (LCD_DCR)
There is a 32
×
32 bit line buffer in the LCDC that stores DMA data from system memory. The DMA
control register controls the DMA burst length and when to trigger a DMA burst in terms of the number
of data bytes left in the pixel buffer.
Address: 0xFC0A_C02C (LCD_PCCR)
Access: User read/write
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
15
14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
R 0 0 0 0 0 0 0
CLS_HI_WIDTH
LD
MSK
0 0 0 0
SCR
CC_
EN
PW
W
Reset 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0
0 0 0 0 0 0
0
0 0 0 0 0 0 0 0
Figure 22-14. LCD PWM Contrast Control Register (LCD_PCCR)
Table 22-15. LCD_PCCR Field Descriptions
Field
Description
31–25
Reserved, must be cleared.
24–16
CLS_HI_
WIDTH
LCD_CLS high pulse width. Controls the pulse width of LCD_CLS in units of LCD_LSCLK. The actual pulse width
is CLS_HI 1.
15
LDMSK
LD mask. Enables/disables the line data (LCD_D[17:0]) output to zero for the Sharp TFT panel power-off sequence.
0 LCD_D[17:0] is normal.
1 LCD_D[17:0] always equals 0.
14–11
Reserved, must be cleared.
10–9
SCR
Source select. Selects the input clock source for the PWM counter. The PWM output frequency is equal to the
frequency of the input clock divided by 256.
00 Line pulse
01 Pixel clock
10 LCD clock (f
sys/3
)
11 Reserved
8
CC_EN
Contrast control enable. Enables/disables the contrast control function.
0 Contrast control is off.
1 Contrast control is on.
7–0
PW
Pulse width. Controls the pulse width of the built-in pulse width modulator, which controls the contrast of the LCD
screen.
MCF5329 Reference Manual, Rev 3
Summary of Contents for MCF5329
Page 106: ...ColdFire Core 3 32 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 148: ...Cache 5 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 154: ...Static RAM SRAM 6 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 184: ...Power Management 8 18 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 204: ...Reset Controller Module 10 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 220: ...System Control Module SCM 11 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 228: ...Crossbar Switch XBS 12 8 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 268: ...General Purpose I O Module 13 40 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 392: ...SDRAM Controller SDRAMC 18 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 436: ...Fast Ethernet Controller FEC 19 44 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 594: ...FlexCAN 23 30 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 678: ...Pulse Width Modulation PWM Module 26 22 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 684: ...Watchdog Timer Module 27 6 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 704: ...DMA Timers DTIM0 DTIM3 29 12 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 754: ...UART Modules 31 34 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 770: ...I2 C Interface 32 16 Freescale Semiconductor MCF5329 Reference Manual Rev 3...
Page 866: ...Debug Module 36 50 Freescale Semiconductor MCF5329 Reference Manual Rev 3...