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19.5
On-Board Programming Mode
When pins are set to on-board programming mode and a reset-start is executed, the chip enters the
on-board programming state in which on-chip flash memory programming, erasing, and verifying
can be carried out. There are two operating modes in this mode—boot mode and user program
mode. The pin settings for entering each mode are shown in table 19.7. For a diagram of the
transitions to the various flash memory modes, see figure 19.3.
Boot mode and user program mode cannot be used in the H8/3062F-ZTAT B-mask version's
mode 6 (on-chip ROM enabled).
Table 19.7 On-Board Programming Mode Settings
Mode
Boot mode
User program mode
Notes: *1 For the High level input timing, see items 6 and 7 of "Notes on Using the Boot Mode" in
section 18.5.1.
*2 In boot mode, the MD
In the boot mode in the H8/3062F-ZTAT B-mask version, the levels of the mode pins
(MD
to MD
2
control register (MDCR).
FWE
1
1 *
Mode 5
Mode 7
Mode 5
Mode 7
setting should be the inverse of the input.
2
) are reflected in mode select bits 2 to 0 (MDS2 to MDS0) in the mode
0
MD
MD
2
1
2
0 *
0
2
0 *
1
1
0
1
1
MD
0
1
1
1
1
593
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