IMX35 datasheet(91/148 Pages) FREESCALE

91 / 148 page

i.MX35 Applications Processors for Industrial and Consumer Products, Rev. 6

Freescale Semiconductor

4.9.13.5.10

Serial Interfaces, Electrical Characteristics

Figure 67 depicts timing of the serial interface. Table 55 lists the timing parameters at display access level.

Figure 67. Asynchronous Serial Interface Timing Diagram

Table 55. Asynchronous Serial Interface Timing Parameters—Access Level

Parameter

Symbol

Min.

Typ.1

Max.

Units

IP48 Read system cycle time

Tcycr

Tdicpr – 1.5

Tdicpr2

Tdicpr + 1.5

IP49 Write system cycle time

Tcycw

Tdicpw – 1.5

Tdicpw3

Tdicpw + 1.5

IP50 Read clock low pulse width

Trl

Tdicdr – Tdicur – 1.5

Tdicdr4 –Tdicur5 Tdicdr – Tdicur + 1.5

IP51 Read clock high pulse width

Trh

Tdicpr – Tdicdr + Tdicur

–1.5

Tdicpr – Tdicdr +

Tdicur

Tdicpr – Tdicdr + Tdicur

+1.5

IP52 Write clock low pulse width

Twl

Tdicdw – Tdicuw – 1.5

Tdicdw6 –

Tdicuw7

Tdicdw – Tdicuw + 1.5

IP53 Write clock high pulse width

Twh

Tdicpw – Tdicdw +

Tdicuw – 1.5

Tdicpw – Tdicdw

+Tdicuw

Tdicpw – Tdicdw +

Tdicuw + 1.5

IP54 Controls setup time for read

Tdcsr

Tdicur – 1.5

Tdicur

—

IP49, IP48

Read Data

IP51, IP53

IP58

IP59

DISPB_SER_RS

DISPB_DATA

(Input)

(Output)

IP56,IP54

IP57, IP55

IP50, IP52

IP61

IP60

IP67,IP65

IP47

IP64, IP66

IP62, IP63

DISPB_SD_D_CLK

read point

IMX35 데이터시트(PDF) 91 Page - Freescale Semiconductor, Inc

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