HD64F7047F50 Datasheet, PDF(613/766 Page) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

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HD64F7047F50 Datasheet, PDF (613/766 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

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19.10 PROM Programmer Mode

In PROM programmer mode, a PROM programmer can be used to perform programming/erasing

via a socket adapter, just as for a discrete flash memory. Use a PROM programmer that supports

the Renesas 256-kbyte flash memory on-chip MCU device type (FZTAT256V3A).

19.11 Notes on Use

â¢ Setting module standby mode

For flash memory, this module can be disabled/enabled by the module standby control register.

Flash memory operation is enabled for the initial value. Accessing flash memory is disabled by

setting module standby mode. For more information, see section 24, Power-Down Modes.

19.12 Notes when Converting the F-ZTAT Versions to the Mask-ROM

Versions

Please note the following when converting the F-ZTAT versions to the mask-ROM versions, with

using the F-ZTAT application software.

In the mask-ROM version, addresses of the flash memory registers (see appendix A.1, Register

Addresses (Order of Address)) return undefined value if read.

When the F-ZTAT application software is used in the mask-ROM versions, the FWP pin level

cannot be determined. When converting the program, make sure the reprogramming

(erasing/programming) part of the flash memory and the RAM emulation part not to be initiated.

In the mask-ROM versions, boot mode pin setting should not be performed.

Note: This difference applies to all the F-ZTAT versions and all the mask-ROM versions that

have different ROM size.

19.13 Notes on Flash Memory Programming and Erasing

Precautions concerning the use of on-board programming mode, the RAM emulation function, and

programmer mode are summarized below.

Use the specified voltages and timing for programming and erasing: Appling excessive

voltage beyond the specification can permanently damage the device. Use an EPROM

programmer that supports the Renesas' microcomputer device having on-chip 256-kbyte flash

memory. Use only the specified socket adapter, otherwise a serious damage may occur.

Powering on and off (see figures 19.11 to 19.13): Do not apply a low level to the FWP pin until

VCC has been stabilized. Also, drive the FWP pin high before turning off VCC. If VCC is to be

Rev. 2.00, 09/04, page 571 of 720

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