SH7014 Datasheet, PDF (564/754 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

18. 128 kB Flash Memory (F-ZTAT)
18.10 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).
18.11 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×2 mode (see table 18.10) and input a 6 MHz input
clock, so that the SH7017 runs at 12 MHz.
Table 18.10 shows the pin settings for programmer mode. For the pin names in programmer mode,
see section 1.3.2, Pin Arrangement by Mode.
Table 18.10 PROM Mode Pin Settings
Pin Names
Settings
Mode pins: 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, PLLV_CC, PLLCAP,
PLLV_SS pins
Oscillator circuit
Note: In programmer mode, the FWP pin has its polarity reversed and functions as the FWE
(flash write enable) pin.
Rev.5.00 Sep. 27, 2007 Page 530 of 716
REJ09B0398-0500