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VV6404 датащи(PDF) 34 Page - STMicroelectronics |
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VV6404 датащи(HTML) 34 Page - STMicroelectronics |
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34 / 54 page ![]() VV5404 & VV6404 CD5404-6404F-A 34/54 The option to enable the qclk during the data and control period of the line must not be selected if monochrome (shuffled or unshuffled) video has been selected. 5.5.8 Setup5 [001_01012] It is important to note that although the output buffer driver strengths can be selected by writing to this register the programmed values cannot be read back by the serial interface. QCK mode[1:0] QCK state 00 Off 0 1 Free Running 1 0 Valid during data and control period of line (see note) 1 1 Valid only during data period of line Table 19 : QCK Modes Note: Not currently verified. Contact STMicroelectronics for further information if this mode is to be used. FST mode[1:0] FST state 00 Off 0 1 On - qualifies the status line 10 Reserved 11 Unallocated Table 20 : FST Modes Bit Function Default Comment 0 Map serial interface register bits values on to the QCK and FST pins Off/On 0 1 Serial Interface Bit for QCK pin 0 2 Serial Interface Bit for FST pin 0 3 Output driver strength select 1 Default setting selects 4mA driver 4 Output driver strength select 0 Default setting selects 4mA drivers 7:5 Unused 0 Table 21 : Setup4[001_01012] Mapping Enable FST pin QCK pin 0FST QCK 1 su5[2] su5[1] Table 22 : FST/QCK Pin Selection |
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