PXD20 Datasheet, PDF (108/130 Pages) Freescale Semiconductor, Inc – PXD20 Microcontroller

Electrical characteristics
Table 54. LCD interface timing parameters—horizontal and vertical
Num
1
2
3
4
5
6
Symbol
t_PCP
t_PWH
t_BPH
t_FPH
t_SW
t_HSP
CC¹
CC¹
CC¹
CC¹
CC¹
CC¹
C
Characteristic
D Display pixel clock period
D HSYNC pulse width
D HSYNC back porch width
D HSYNC front porch width
D Screen width
D HSYNC (line) period
7 t_PWV CC¹ D VSYNC pulse width
8
t_BPV CC¹ D VSYNC back porch width
— t_FPV CC¹ D VSYNC front porch width
—
t_SH
CC¹ D Screen height
— t_VSP CC¹ D VSYNC (frame) period
1 _{Parameter values guaranteed by design.}
Value
31.25
PW_H × t_PCP
BP_H × t_PCP
FP_H × t_PCP
DELTA_X × t_PCP
(PW_H + BP_H + FP_H + DELTA_X )
× t_PCP
PWV × t_HSP
BP_V × t_HSP
FP_V × t_HSP
DELTA_Y × t_HSP
(PW_V + BP_V + FP_V + DELTA_Y )
× t_HSP
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Start of line
t_PWH
t_PCP
t_BPH
t_HSP
t_SW
t_FPH
PCLK
SpecID
A3.1
A3.2
A3.3
A3.4
A3.5
A3.6
A3.7
A3.8
A3.9
A3.10
A3.11
LD[23:0]
HSYNC
Invalid Data
1
2
3
DELTA_X Invalid Data
DE
Figure 25. Horizontal sync timing
PXD20 Microcontroller Data Sheet, Rev. 2
108
Preliminary—Subject to Change Without Notice
Freescale Semiconductor