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38D2 Datasheet(PDF) 6 Page - Renesas Technology Corp |
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38D2 Datasheet(HTML) 6 Page - Renesas Technology Corp |
6 / 136 page ![]() Rev.3.02 Apr 10, 2008 Page 6 of 131 REJ03B0177-0302 38D2 Group Table 3 Pin description (2) Pin Name Function Function except a port function P60/CNTR1 I/O port P6 • .3-bit I/O port. • CMOS compatible input level. • CMOS 3-state output structure. • I/O direction register allows each pin to be individually programmed as either input or output. • Pull-up control is enabled in 3-bit unit • Timer Y function pins P61/XCIN P62/XCOUT • Sub clock generating circuit I/O pins (oscillator connected) OSCSEL (Only QzROM version) Oscillation start selection pin • Whether oscillation starts by an oscillator between the XIN and XOUT pins or an on-chip oscillator is selected. •VPP power source input pin in the QzROM writing mode. CNVSS (Only flash memory version) CNVSS • Pin for controlling the operating mode of the chip. Connect to VSS. VREF Analog reference voltage • Reference voltage input pin for A/D converter. AVSS Analog power source • Analog power source input pin for A/D converter. Connect to VSS. |