Renesas H8S/2378F Información técnica descargar pdf (Pagina 105)

8.4 Modules

There are the following libraries: Transfer library, erasing library, and programming library. The function of each

module is shown below:

Table 8-6 Libraries and Entries

Library Module Name Entry Function

Transfer Transfer start Setting the SCO bit to 1 Transfers the program corresponding to the specified

program type and program code.

Erase initial

setting

(Transfer destination +

32 bytes)

Calculates the erasing wait time using the specified

operating frequency.

Erasing

Block erasing (Transfer destination +

16 bytes)

Erases the specified block.

Programming

initial setting

(Transfer destination +

32 bytes)

Calculates the programming wait time using the

specified operating frequency.

Programming

Programming (Transfer destination +

16 bytes)

Programs the specified data in the specified

programming destination address.

8.5 Module Specifications

The library module specifications are listed below for your information. For details, refer to the Hardware Manual.

8.5.1 Transfer Start

Name Transfer start

Type None

Sets the SCO bit of the FCCS bit to 1 to transfer a library.

Function Transfers a program.

Argument None

Input For the programming library, set the PPVS bit (bit 0) of the FPCS register to 1.

For the erasing library, set the EPVB bit (bit 0) of the FECS register to 1.

Specify the transfer destination in RAM in the FTDAR register.

Set the FKEY register to H'A5.

Set the first byte of the transfer destination in RAM to H'FF.

Return

Value

None

Output FTDAR register TDER bit (bit 7): Parameter check flag

Normal termination: 0

FTDAR register value error: 1 (downloading is suspended.)

First byte of the transfer destination in RAM: Processing result

Normal termination: H'00

FKEY register value error: H'03

Multi-selection error: H'05

Processing Selects the library corresponding to the PPVS bit of the FPCS register or the EPVB bit of the FECS

If a library selection error occurs, sets the processing result and returns control.

If FKEY is not H'A5, sets the processing result and returns control.

If an FTDAR error occurs, sets the TDER bit to 1 and returns control.

Transfers the library to the RAM area specified using FTDAR.

Clears the SCO bit to 0.

Returns control to the instruction next to that for setting the SCO bit.

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