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SH7721 Datasheet(PDF) 519 Page - Renesas Technology Corp |
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SH7721 Datasheet(HTML) 519 Page - Renesas Technology Corp |
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519 / 1524 page  Section 11 Clock Pulse Generator (CPG) Rev. 3.00 Jan. 18, 2008 Page 457 of 1458 REJ09B0033-0300 11.2 Input/Output Pins Table 11.1 lists the CPG pins and their functions. Table 11.1 Pin Configuration Pin Name Abbreviation I/O Description Mode control pins MD0 Input Set the clock operating mode MD1 Input Set the clock operating mode MD2 Input Set the clock operating mode XTAL Output Connects a crystal resonator Crystal I/O pins (clock input pins) EXTAL Input Connects a crystal resonator. Also used to input an external clock. Clock I/O pin CKIO I/O Inputs or outputs an external clock EXTAL_USB Input External clock pin for USBH/USBF XTAL_USB Output Inputs an external clock to USBH/USBF (48 MHz) Note: To prevent device malfunction, the value of the mode control pin is sampled only upon a power-on reset. |
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