SN8F5708 datasheet(24/204 Pages) SONIX

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SN8F5708 Series

CPU

Datasheet Rev. 2.4

5.4 Program Memory (IROM)

The program memory is a non-volatile storage area where stores code, look-up ROM table, and

other data with occasional modification. It can be updated by debug tools like SN-Link3, and a

program can also self-update via in-system program process (refer to In-system Program).

Address

ROM

Comment

0000H

Reset vector

0001H

General purpose area

User program

0002H

0003H

INT0 Interrupt vector

Interrupt vector

000BH

TIMER0 Interrupt vector

0013H

INT1 Interrupt vector

001BH

TIMER1 Interrupt vector

0023H

UART Interrupt vector

002BH

TIMER2 Interrupt vector

0043H

I2C Interrupt vector

004BH

SPI Interrupt vector

0053H

T2COM0 Interrupt vector

005BH

T2COM1 Interrupt vector

0063H

T2COM2 Interrupt vector

006BH

T2COM3 Interrupt vector

0083H

PWM1 Interrupt vector

008BH

PWM2 Interrupt vector

0093H

PWM3 Interrupt vector

009BH

ADC Interrupt vector

00A3H Comparator 0 Interrupt vector

00ABH Comparator 1 Interrupt vector

00EBH

INT2 Interrupt vector

00ECH

General purpose area

User program

End of user program

3FF6H

Reserved

3FF7H

3FFEH

3FFFH

The ROM includes reset vector, Interrupt vector, general purpose area and reserved area. The reset

vector is program beginning address. The interrupt vector is the head of interrupt service routine

when any interrupt occurring. The general purpose area is main program area including main loop,

sub-routines and data table.



0x0000 Reset vector: Program counter points to 0x0000 after any reset events (power on

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