SH7014 datasheet(564/754 Pages) RENESAS

564 / 754 page

18. 128 kB Flash Memory (F-ZTAT)

Rev.5.00 Sep. 27, 2007 Page 530 of 716

REJ09B0398-0500

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.

SH7014 Datasheet(PDF) 564 Page - Renesas Technology Corp