H8SLASH3021 datasheet(488/712 Pages) RENESAS

488 / 712 page

15. ROM

Rev.2.00 Mar. 22, 2007 Page 464 of 684

REJ09B0352-0200

H8/3039F

H8/3022F

PROM mode

Use of PROM programmer

supporting Renesas

Technology microcomputer

device type with 128 kbytes

on-chip flash memory

(FZTAT128)

Use of PROM programmer

supporting Renesas

Technology microcomputer

device type with 256 kbytes

on-chip flash memory

(FZTAT256)

Notes: 1. See section 15.7, Programming/Erasing Flash Memory, for details of the H8/3022F

program/erase algorithms.

2. See section 18.2.5, Flash Memory Characteristics, for details of the H8/3022F flash

memory characteristics.

15.6

On-Board Programming Modes

When pins are set to on-board programming mode and a reset-start is executed, a transition is

made to the on-board programming state in which program/erase/verify operations can be

performed on the on-chip flash memory. There are two on-board programming modes: boot mode

and user program mode. The pin settings for transition to each of these modes are shown in table

15.6. For a diagram of the transitions to the various flash memory modes, see figure 15.2.

Table 15.6

Setting On-Board Programming Modes

Mode

FWE

MD2

MD1

MD0

Boot mode

Expanded modes

Mode 5

Mode 6

Single-chip mode

Mode 7

User program mode

Expanded modes

Mode 5

Mode 6

Single-chip mode

Mode 7

Notes: 1. For the high-level application timing, see items (6) and (7) in Notes on Use of Boot

Mode.

2. In boot mode, the MD2 setting should be the inverse of the input (0). In boot mode, the

mode control register (MDCR) can be used to monitor the status of modes 5, 6, and 7,

in the same way as in normal mode.

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