HD64F7045F28V Datasheet, PDF (764/925 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7040 Series

22.10 Note on Flash Memory Programming/Erasing
In the on-board programming modes (user mode and user program mode), NMI input should be
disabled to give top priority to the program/erase operations (including RAM emulation).
22.11 Flash Memory Programmer Mode
Programs and data can be written and erased in programmer mode as well as in the on-board
programming modes. In programmer mode, flash memory read mode, auto-program mode, auto-
erase mode, and status read mode are supported. In auto-program mode, auto-erase mode, and
status read mode, a status polling procedure is used, and in status read mode, detailed internal
signals are output after execution of an auto-program or auto-erase operation.
In programmer mode, set the mode pins to PLL x2 mode (see table 22.10) and use a 6 MHz input
clock. The LSI will then operate at 12 MHz.
Table 22.10 shows the pin settings for programmer mode. For the pin names in programmer mode,
see section 1.3.2, Pin Arrangement by Mode).
Table 22.10 Programming Mode Pin Settings
Pin Names
Settings
Mode pin: MD3, MD2, MD1, MD0
1101 (PLL × 2)
FWE pin
High level input (in auto-program and auto-
erase modes)
RES pin
Power-on reset circuit
XTAL, EXTAL, PLLVcc, PLLCAP, and PLLVss pins Oscillator circuit
Note: During the programming mode, polarity of the FWP pin is inverted and becomes the FWE
(flash write enable) pin.
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