R5F72115D160FPV datasheet(936/1228 Pages) RENESAS

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Section 21 Flash Memory

Rev. 2.00 May. 08, 2008 Page 912 of 1200

REJ09B0344-0200

(3)

Programming Execution

When flash memory is programmed, the programming destination address and programming data

on the user MAT must be passed to the programming program in which the program data is

downloaded.

1. The start address of the programming destination on the user MAT is set in general register R5

of the CPU. This parameter is called FMPAR (flash multipurpose address area parameter).

Since the program data is always in 256-byte units, the lower eight bits (MOA7 to MOA0)

must be H'00 as the boundary of the programming start address on the user MAT.

2. The program data for the user MAT must be prepared in the consecutive area. The program

data must be in the consecutive space which can be accessed by using the MOV.B instruction

of the CPU and is not the flash memory space.

When data to be programmed does not satisfy 256 bytes, the 256-byte program data must be

prepared by embedding the dummy code (H'FF).

The start address of the area in which the prepared program data is stored must be set in

general register R4. This parameter is called FMPDR (flash multipurpose data destination area

parameter).

For details on the programming procedure, see section 21.5.2, User Program Mode.

(3.1) Flash Multipurpose Address Area Parameter (FMPAR: General Register R5 of CPU)

This parameter indicates the start address of the programming destination on the user MAT.

When an address in an area other than the flash memory space is set, an error occurs.

The start address of the programming destination must be at the 256-byte boundary. If this

boundary condition is not satisfied, an error occurs. The error occurrence is indicated by the WA

bit (bit 1) in FPFR.

Bit:

Initial value:

R/W:

Bit:

Initial value:

R/W:

987654321

----------------

R/W

----------------

R/W

MOA31 MOA30 MOA29 MOA28 MOA27 MOA26 MOA25 MOA24 MOA23 MOA22 MOA21 MOA20 MOA19 MOA18 MOA17 MOA16

MOA15 MOA14 MOA13 MOA12 MOA11 MOA10 MOA9

MOA8

MOA7

MOA6

MOA5

MOA4

MOA3

MOA2

MOA1

MOA0

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