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R5F21228KFP Datasheet(PDF) 8 Page - Renesas Technology Corp |
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R5F21228KFP Datasheet(HTML) 8 Page - Renesas Technology Corp |
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8 / 52 page  R8C/22 Group, R8C/23 Group 1. Overview Rev.1.10 Mar 16, 2007 Page 8 of 48 REJ03B0097-0110 1.6 Pin Functions Table 1.5 lists the Pin Functions and Table 1.6 lists the Pin Name Information by Pin Number. I: Input O: Output I/O: Input and output Table 1.5 Pin Functions Type Symbol I/O Type Description Power Supply Input VCC VSS I Apply 2.7 V to 5.5 V to the VCC pin. Apply 0 V to the VSS pin. Analog Power Supply Input AVCC, AVSS I Applies the power supply for the A/D converter. Connect a capacitor between AVCC and AVSS. Reset Input RESET I Input “L” on this pin resets the MCU. MODE MODE I Connect this pin to VCC via a resistor. XIN Clock Input XIN I These pins are provided for the XIN clock generation circuit I/O. Connect a ceramic resonator or a crystal oscillator between the XIN and XOUT pins. To use an externally derived clock, input it to the XIN pin and leave the XOUT pin open. XIN Clock Output XOUT O INT Interrupt Input INT0 to INT3 IINT interrupt input pins. INT0 Timer RD input pins. INT1 Timer RA input pins. Key Input Interrupt KI0 to KI3 I Key input interrupt input pins. Timer RA TRAIO I/O Timer RA I/O pin. TRAO O Timer RA output pin. Timer RB TRBO O Timer RB output pin. Timer RD TRDIOA0, TRDIOA1, TRDIOB0, TRDIOB1, TRDIOC0, TRDIOC1, TRDIOD0, TRDIOD1 I/O Timer RD I/O ports. TRDCLK I External clock input pin. Timer RE TREO O Divided clock output pin. Serial Interface CLK0 I/O Transfer clock I/O pin. RXD0, RXD1 I Serial data input pins. TXD0, TXD1 O Serial data output pins. I2C Bus Interface SCL I/O Clock I/O pin. SDA I/O Data I/O pin. Clock Synchronous Serial I/O with Chip Select SSI I/O Data I/O pin. SCS I/O Chip-select signal I/O pin. SSCK I/O Clock I/O pin. SSO I/O Data I/O pin. CAN Module CRX0 I CAN data input pin. CTX0 O CAN data output pin. Reference Voltage Input VREF I Reference voltage input pin to A/D converter. A/D Converter AN0 to AN11 I Analog input pins to A/D converter. I/O Port P0_0 to P0_7, P1_0 to P1_7, P2_0 to P2_7, P3_0, P3_1, P3_3 to P3_5, P3_7, P4_3 to P4_5, P6_0 to P6_7 I/O CMOS I/O ports. Each port contains an input/output select direction register, allowing each pin in that port to be directed for input or output individually. Any port set to input can select whether to use a pull-up resistor or not by a program. Input Port P4_2, P4_6, P4_7 I Input only ports. |
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