HD6432345 Datasheet, PDF (580/907 Pages) Hitachi Semiconductor – H8S/2345 F-ZTAT Hardware Manual

17.8 On-Board Programming Modes
When pins are set to an on-board programming mode, they enter an on-board programming status
in which program, erase, and 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 17.14. For a diagram of the transitions to
the various flash memory modes, see figure 17.8.
Table 17.14 Setting On-Board Programming Modes
Mode
Mode Name
CPU Operating Mode
FWE MD₂ MD₁ MD₀
Boot mode
Mode 10 Advanced expanded mode with 1
0
1
0
on-chip ROM enabled
Mode 11 Advanced single-chip mode
1
User program Mode 14 Advanced expanded mode with 1*²
1
1
0
mode*¹
on-chip ROM enabled
Mode 15 Advanced single-chip mode
1
Notes: 1. Normally, user mode (modes 6 and 7) should be used. Set FWE to 1 to make a
transition to user program mode (modes 14 and 15) before performing a
program/erase/verify operation.
2. Refer to “17.4, Notes on Programming and Erasing Flash Memory” for information on
programming and clearing FWE.
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