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IMX27L Datasheet(PDF) 85 Page - Freescale Semiconductor, Inc |
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IMX27L Datasheet(HTML) 85 Page - Freescale Semiconductor, Inc |
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85 / 122 page  Signal Descriptions i.MX27/i.MX27L Data Sheet, Advance Information, Rev. 1 Freescale Semiconductor Preliminary—Subject to Change Without Notice 85 Figure 44. SLCDC Timing Diagram—Parallel Transfers to LCD Device Table 43. SLCDC Serial Interface Timing Parameters Symbol Parameter Min Typ Max Units tcss Chip select setup time (tcyc / 2) ( ±) tprop —— ns tcsh Chip select hold time (tcyc / 2) ( ±) tprop —— ns tcyc Serial clock cycle time 39 ( ±) tprop —2641 ns tcl Serial clock low pulse 18 ( ±) tprop —— ns tch Serial clock high pulse 18 ( ±) tprop —— ns tds Data setup time (tcyc / 2) (±) tprop —— ns tdh Data hold time (tcyc / 2) (±) tprop —— ns trss Register select setup time (15 * tcyc / 2) (±) tprop —— ns trsh Register select hold time (tcyc / 2) (±) tprop —— ns Table 44. SLCDC Parallel Interface Timing Parameters Symbol Parameter Min Typ Max Units tcyc Parallel clock cycle time 78 ( ±) tprop — 4923 — tds Data setup time (tcyc / 2) (±) tprop —— — tdh Data hold time (tcyc / 2) (±) tprop —— — LCD_CLK LCD_DATA[15:0] LCD_RS command data LCD_CS display data trsh trss tds tdh tcyc LCD_CLK LCD_DATA[15:0] LCD_RS command data LCD_CS display data trsh trss tds tdh tcyc This diagram illustrates the timing when CSPOL=0 This diagram illustrates the timing when CSPOL=1 |
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