Page 47 of 346 Start Back Next End ZBasic System Library 35 ZBasic Microcontrollers System Library Routines that May Load ISRs System Library Routine ISR for ATtiny/ATmega ISR for ATxmega ADCtoCom1() TIMER#_COMPA n/a Com1toDAC() TIMER#_COMPA n/a InputCapture() TIMER*_CAPT TIMER*_OVF TC*_CCA TC*_OVF OutputCapture() TIMER*_COMPB TC*_CCB OpenCom() USART#_RX USART#_TX USART#_UDRE TIMER&_COMPA USART#_RXC USART#_TXC USART#_UDRE TC&_CCA OpenX10() INT* TIMER$_COMPB ACA_AC0 TC$_CCB WaitForInterrupt() INT# PCINT# ANALOG_COMP PORTx_INT# ACA_AC0 ACA_AC1 ACA_ACW ACB_AC0 ACB_AC1 ACB_ACW In the table above some ISR names (shaded) are given symbolically in the interest of brevity, representing multiple possible ISR names. The table below describes how to interpret the symbolic ISR entries. Key to Symbolic ISR Names Symbolic ISR Name Meaning TIMER#_COMPA Replace TIMER# with the name of the I/O Timer, e.g. TIMER1. TIMER*_COMPB TIMER*_CAPT TIMER*_OVF Replace TIMER* with the applicable 16-bit timer name, e.g. TIMER4. TIMER&_COMPA Replace TIMER& with the software UART timer name, e.g. TIMER2. TIMER$_COMPB Replace TIMER$ with the RTC timer name, e.g. TIMER0. TC*_CCA TC*_CCB TC*_OVF Replace TC* with the applicable timer name, e.g. TCC0. TC&_CCA Replace TC$ with the software UART timer name, e.g. TCC0. TC$_CCB Replace TC$ with the RTC timer name, e.g. TCC0. USART#_RX USART#_TX USART#_UDRE Replace USART# with the applicable UART name, e.g. USART0. USART#_RXC USART#_TXC USART#_UDRE Replace USART# with the applicable UART name, e.g. USARTC0. INT# Replace INT# with the external interrupt name, e.g. INT0. INT* Replace INT* with the X-10 zero-crossing interrupt name, e.g. INT0. PCINT# Replace PCINT# with the pin change interrupt name, e.g. PCINT0. PORTx_INT# Replace PORTx with the applicable port name, e.g. PORTA and replace INT# with the applicable pin change channel designator, e.g. INT0. Program Memory Page Size For ZBasic devices having Program Memory in internal Flash Memory, the page size of that memory is an important value. For example, for an application that writes to Program Memory a buffer of the length of the page size must be allocated from the heap in order to perform the necessary read-modify-write operation that is required for updating Flash Memory locations. This is one factor affecting the minimum