Datasheet

Electrical Characteristics
i.MX 6DualPlus/6QuadPlus Automotive Applications Processors, Rev. 3, 11/2018
NXP Semiconductors 105
The maximum accuracy of UP/DOWN edge of controls is:
The maximum accuracy of UP/DOWN edge of IPP_DISP_DATA is:
The DISP_CLK_PERIOD, DI_CLK_PERIOD parameters are register-controlled.
IP5o Offset of IPP_DISP_CLK Todicp DISP_CLK_OFFSET
× Tdiclk
DISP_CLK_OFFSET—offset of
IPP_DISP_CLK edges from local start
point, in DI_CLK×2
(0.5 DI_CLK Resolution).
Defined by DISP_CLK counter.
ns
IP13o Offset of VSYNC Tovs VSYNC_OFFSET
× Tdiclk
VSYNC_OFFSET—offset of Vsync edges
from a local start point, when a Vsync
should be active, in DI_CLK
×2
(0.5 DI_CLK Resolution). The
VSYNC_OFFSET should be built by
suitable DI’s counter.
ns
IP8o Offset of HSYNC Tohs HSYNC_OFFSET
× Tdiclk
HSYNC_OFFSET—offset of Hsync edges
from a local start point, when a Hsync
should be active, in DI_CLK×2
(0.5 DI_CLK Resolution). The
HSYNC_OFFSET should be built by
suitable DI’s counter.
ns
IP9o Offset of DRDY Todrdy DRDY_OFFSET
× Tdiclk
DRDY_OFFSET—offset of DRDY edges
from a suitable local start point, when a
corresponding data has been set on the
bus, in DI_CLK×2
(0.5 DI_CLK Resolution).
The DRDY_OFFSET should be built by
suitable DI’s counter.
ns
1
Display interface clock period immediate value.
DISP_CLK_PERIOD—number of DI_CLK per one Tdicp. Resolution 1/16 of DI_CLK.
DI_CLK_PERIOD—relation of between programing clock frequency and current system clock frequency
Display interface clock period average value.
2
DI’s counter can define offset, period and UP/DOWN characteristic of output signal according to programed parameters of the
counter. Same of parameters in the table are not defined by DI’s registers directly (by name), but can be generated by
corresponding DI’s counter. The SCREEN_WIDTH is an input value for DI’s HSYNC generation counter. The distance between
HSYNCs is a SCREEN_WIDTH.
Table 65. Synchronous Display Interface Timing Characteristics (Pixel Level) (continued)
ID Parameter Symbol Value Description Unit
Tdicp
T
diclk
DISP_CLK_PERIOD
DI_CLK_PERIOD
----------------------------------------------------
× for integer
DISP_CLK_PERIOD
DI_CLK_PERIOD
----------------------------------------------------,
T
diclk
floor
DISP_CLK_PERIOD
DI_CLK_PERIOD
----------------------------------------------------
0.5 0.5±+


for fractional
DISP_CLK_PERIOD
DI_CLK_PERIOD
----------------------------------------------------,







=
Tdicp T
diclk
DISP_CLK_PERIOD
DI_CLK_PERIOD
----------------------------------------------------
×=
Accuracy 0.5 T
diclk
×()0.62ns±=
Accuracy T
diclk
0.62ns±=