HD64F3039F18 Datasheet, PDF (476/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series

Section 15 ROM
15.4 On-Board Programming Modes
When pins are set to on-board programming mode, 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. In mode 6 (on-chip ROM enabled) in this LSI, the boot mode and user program mode cannot
be used. For the notes on FWE pin set/reset, see section 15.9, Notes on Flash Memory
Programming/Erasing.
Table 15.6 Setting On-Board Programming Modes
Mode
FWE
MD
2
MD
1
MD
0
Notes
Boot mode
mode 5
1*¹
0*²
0
1
0: V
IL
mode 7
0*²
1
1
1: V_IH
User program mode
mode 5
1
0
1
mode 7
1
1
1
Notes: 1. For the High level input timing, see items (6) and (7) of Notes on Using the Boot Mode.
2. In the boot mode, the MD₂ setting becomes inverted input.
In the boot mode, the mode control register (MDCR) can be used to monitor the status
of modes 5 and 7 in the same way as in the normal mode.
Rev.3.00 Mar. 26, 2007 Page 452 of 682
REJ09B0353-0300