IMX35 Datasheet, PDF (89/148 Pages) Power-One – 35 Watt DC-DC Converters

Table 55. Asynchronous Parallel Interface Timing Parameters—Access Level (continued)
ID
Parameter
Symbol
Min.
Typ.¹
Max.
Units
IP35 Controls setup time for write
IP36 Controls hold time for write
IP37 Slave device data delay⁸
Tdcsw Tdicuw – 1.5
Tdchw Tdicpw – Tdicdw – 1.5
Tracc 0
IP38 Slave device data hold time⁸
IP39 Write data setup time
IP40 Write data hold time
IP41 Read period²
IP42 Write period³
IP43 Read down time⁴
IP44 Read up time⁵
IP45 Write down time⁶
IP46 Write up time⁷
IP47 Read time point⁹
Troh Tdrp – Tlbd – Tdicdr
+ 1.5
Tds Tdicdw – 1.5
Tdh Tdicpw – Tdicdw – 1.5
Tdicpr Tdicpr – 1.5
Tdicpw Tdicpw – 1.5
Tdicdr Tdicdr – 1.5
Tdicur Tdicur – 1.5
Tdicdw Tdicdw – 1.5
Tdicuw Tdicuw – 1.5
Tdrp Tdrp – 1.5
Tdicuw
—
ns
Tdicpw – Tdicdw
—
ns
—
Tdrp⁹ – Tlbd¹⁰ – Tdicur – ns
1.5
—
Tdicpr – Tdicdr – 1.5
ns
Tdicdw
—
ns
Tdicpw – Tdicdw
—
ns
Tdicpr
Tdicpr + 1.5
ns
Tdicpw
Tdicpw + 1.5
ns
Tdicdr
Tdicdr + 1.5
ns
Tdicur
Tdicur + 1.5
ns
Tdicdw
Tdicdw + 1.5
ns
Tdicuw
Tdicuw + 1.5
ns
Tdrp
Tdrp + 1.5
ns
1_{The exact conditions have not been finalized, but will likely match the current customer requirement for their specific display.}
These conditions may be device-specific.
2 _{Display interface clock period value for read:}
Tdicpr = THSP_CLK ⋅ cei l ^{D-----I--S-H--P--S--#-P--_--_-I--CF---_-L--C-K---L--_--K-P---E_---P-R--E--I--OR----D_---R----D---}
3 _{Display interface clock period value for write:}
Tdicpw
=
THSP_CLK ⋅ ceil
D-----I--S---P---#----_---I--F---_---C----L----K----_---P---E----R----_---W------R--
HSP_CLK_PERIOD
4 _{Display interface clock down time for read:}
Tdicdr
=
1--
2
THSP_CLK
⋅
ce
i
l
2-----⋅_{---D----I--S----P---#---_---I--F---_---C----L----K----_----D----O----W------N----_---R----D---}
HSP_CLK_PERIOD
5 _{Display interface clock up time for read:}
Tdicur
=
1--
2
THSP_CLK
⋅
ce
il
2-----⋅_{---D-----I-S---P----#---_---I--F----_--C-----L---K----_---U-----P---_---R----D---}
HSP_CLK_PERIOD
6 _{Display interface clock down time for write:}
Tdicdw
=
1--
2
THSP_CLK
⋅
ceil
2-----⋅_{---D----I---S---P---#---_---I--F---_----C---L----K-----_--D-----O----W------N----_---W------R--}
HSP_CLK_PERIOD
7 _{Display interface clock up time for write:}
Tdi cuw = ^12-- THSP_CLK ⋅ cei l ^2-----â‹---D---H-I--S-S---PP---#-_--_-C--I--LF---K_---C--_--L-P---EK----R_----UI--O--P--D-_---W------R--
8 _{This parameter is a requirement to the display connected to the IPU}
i.MX35 Applications Processors for Automotive Products, Rev. 6
Freescale Semiconductor
89