H8S2639 Datasheet, PDF (945/1547 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Section 21C ROM (H8S/2635 Group)
21C.8 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
21C-9. For a diagram of the transitions to the various flash memory modes, see figure 21C-3.
Table 21C-9 Setting On-Board Programming Modes
Mode
Boot mode
User program mode
Expanded mode
Single-chip mode
Expanded mode
Single-chip mode
FWE
1
1
MD2
0
0
1
1
MD1
1
1
1
1
MD0
0
1
0
1
Rev. 6.00 Feb 22, 2005 page 885 of 1484
REJ09B0103-0600