Pin Function - Abov MC80F0304 User Manual

MC80F0304/08/16

5. PIN FUNCTION

DD V : Supply voltage. in Table 5-2
SS V : Circuit ground.
RESET: Reset the MCU. Port pin Alternate function
IN X : Input to the inverting oscillator amplifier and input to the in- R10 AVref ( External Analog Reference Pin ) AN0 ( Analog Input Port 0 )
ternal main clock operating circuit. PWM1O ( PWM1 Output )
X OUT : Output from the inverting oscillator amplifier. R11 INT0 ( External Interrupt Input Port 0 )
can be used as outputs or inputs according to "1" or "0" written R00~R07: R0 is an 8-bit, CMOS, bidirectional I/O port. R0 pins R12 INT1 ( External Interrupt Input Port 1 ) PWM3O ( PWM3 Output )
the their Port Direction Register(R0IO). BUZ ( Buzzer Driving Output Port )
R14 R13 - -
Port pin Alternate function R15 -
R00 INT3 ( External Interrupt Input Port3 ) R16 -
SCK ( SPI CLK ) R17 AN8( Analog Input Port 8 )
R01 AN1 ( Analog Input Port 1 ) SI (SPI Serial Data Input ) Table 5-2 R1 Port
R02 AN2 ( Analog Input Port 2 )
R03 AN3 ( Analog Input Port 3 ) SOUT ( SPI Serial Data Output ) can be used as outputs or inputs according to "1" or "0" written R20~R27 : R2 is an 8-bit, CMOS, bidirectional I/O port. R2 pins
INT2 ( External Interrupt Input Port2 ) the their Port Direction Register(R2IO)
R04 AN4 ( Analog Input Port 4 ) In addition, R2 serves the functions of the various special features
EC0 ( Event Counter Input Source 0 ) RXD ( UART Data Input ) in Table 5-3 .
R05 AN5 ( Analog Input Port 5 )
T0O (Timer0 Clock Output ) Port pin Alternate function
R06 AN6 ( Analog Input Port 6 ) TXD ( UART Data Output ) R20 R21 - -
T2O (Timer2 Clock Output ) R22 -
R07 AN7 ( Analog Input Port 7 ) ACLK ( UART Clock Input ) R23 AN9 ( Analog Input Port 9 )
EC1 ( Event Counter Input Source 1 ) R24 R25 AN11 ( Analog Input Port 11 ) AN10 ( Analog Input Port 10 )
R26 AN12 ( Analog Input Port 12 )
Table 5-1 R0 Port R27 -
In addition, R0 serves the functions of the various special features Table 5-3 R2 Port
in Table 5-1 .
R10~R17: R1 is an 8-bit, CMOS, bidirectional I/O port. R1 pins can be used as outputs or inputs according to "1" or "0" written R31~R35: R3 is a 6-bit, CMOS, bidirectional I/O port. R3 pins
can be used as outputs or inputs according to "1" or "0" written the their Port Direction Register (R1IO). the their Port Direction Register (R3IO).
R1 serves the functions of the various following special features R3 serves the functions of the serial interface following special
features in Table 5-4 .
Port pin Alternate function
R30 AN13 ( Analog Input Port 13)
R32 R31 AN15 ( Analog Input Port 15 ) AN14 ( Analog Input Port 14 )
R33 X IN ( Oscillation Input )
R34 X OUT ( Oscillation Output )
R35 RESETB ( Reset input port )
Table 5-4 R3 Port
16 November 4, 2011 Ver 2.12