Epson Research and Development Page 21
Vancouver Design Center
S5U13705B00C Rev. 2.0 Evaluation Board User Manual S1D13705
Issue Date: 2002/09/16 X27A-G-014-02
6.8 Clock Options
The input clock (CLKI) frequency can be up to 50MHz for the S1D13705 if the internal
divide-by-2 mode is set. If the clock divider is not used, the maximum CLKI frequency is
25MHz. There is no minimum input clock frequency.
A 6.0MHz oscillator (U2, socketed) is provided as the input clock source. However,
depending on the LCD resolution, desired frame rate and power consumption budget,
another clock frequency may be required.
A jumper, JP7 is provided to allow CLKI input to be the same as BCLK input, f or sy stems
in which is desired to use only one clock signal for both BCLK and CLKI.
The bus clock (BCLK) is selectable and can be provided by a 50MHz oscillator (U7,
socketed) or the host CPU (for non-PCI host).