PMS232 datasheet(33/94 Pages) PADAUK

33 / 94 page

PMC232/PMS232 Series

12-bit ADC Enhanced FPPA

8-bit OTP Controller

Page 33 of 94

PDK-DS-PMx232_V104– Dec. 18, 2018

5-3. Program Structure

5-3-1. Program structure of two FPP units mode

After power-up, the program starting address of FPP0 is 0x000 and 0x001 for FPP1. The 0x010 is the entry

address of interrupt service routine, which belongs to FPP0 only. The basic firmware structure for

PMC232/PMS232 is shown as Fig. 4, the program codes of two FPP units are placed in one whole program

space. Except for the initial addresses of processing units and entry address of interrupt, the memory location

is not specially specified; the program codes of processing unit can be resided at any location no matter what

the processing unit is. After power-up, the fpp0Boot will be executed first, which will include the system

initialization and other FPP units enabled.

.romadr 0x00

// Program Begin

goto

fpp0Boot;

goto

fpp1Boot;

//------Interrpt service Routine-----------------

.romadr 0x010

pushaf ;

t0sn

intrq.0;

//PA.0 ISR

goto

ISR_PA0;

t0sn

intrq.1;

//PB.0 ISR

…

goto

ISR_PB0;

//------End of ISR---------

//------ Begin of FPP0 ----------

fpp0Boot :

//--- Initialize FPP0 SP and so on…

…

fpp0Loop:

…

goto fpp0Loop:

//------ End of FPP0 --------

//------ Begin of FPP1 ----------

fpp1Boot :

//--- Initialize FPP1 SP and so on…

…

fpp1Loop:

…

goto fpp1Loop:

//--------- End of FPP1 --------

FPP0 function

subroutine

FPP1 function

subroutine

Fig.4: Program Structure

5-3-2. Program structure of single FPP mode

After power-up, the program starting address of FPP0 is 0x000, 0x010 is the entry address of interrupt

service routine. For single FPP unit mode, the firmware structure is same as traditional MCU. After power-up,

the program will be executed from address 0x000, then continuing the program sequence.

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