R5F72115D160FPV datasheet(954/1228 Pages) RENESAS

954 / 1228 page

Section 21 Flash Memory

Rev. 2.00 May. 08, 2008 Page 930 of 1200

REJ09B0344-0200

(2.8) The return value of the initialization program, FPFR (general register R0) is checked.

(2.9) FKEY must be set to H'5A and the user MAT must be prepared for programming.

(2.10) The parameter which is required for programming is set.

The start address of the programming destination of the user MAT (FMPAR) is set to general

1. FMPAR setting

FMPAR specifies the programming destination start address. When an address other than

one in the user MAT area is specified, even if the programming program is executed,

programming is not executed and an error is returned to the return value parameter FPFR.

Since the unit is 256 bytes, the lower eight bits (MOA7 to MOA0) must be in the 256-byte

boundary of H'00.

2. FMPDR setting

If the storage destination of the program data is flash memory, even when the program

execution routine is executed, programming is not executed and an error is returned to the

FPFR parameter. In this case, the program data must be transferred to on-chip RAM and

then programming must be executed.

(2.11) Programming

There is an entry point of the programming program in the area from (download start address

set by FTDAR) + 16 bytes of on-chip RAM. The subroutine is called and programming is

executed by using the following steps.

MOV.L

#DLTOP+16,R1

; Set entry address to R1

JSR

@R1

; Call programming routine

NOP

1. The general registers other than R0 are saved in the programming program.

2. R0 is a return value of the FPFR parameter.

3. Since the stack area is used in the programming program, a stack area of maximum 128

bytes must be reserved in RAM.

R5F72115D160FPV Datasheet(PDF) 954 Page - Renesas Technology Corp