HD6473847RHV Datasheet, PDF (185/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 6 ROM
Table 6.7 Oscillation Frequencies for which Automatic Adjustment of LSI Bit Rate Is
Possible (f_OSC)
Product Group
H8/38004F Group
Host Bit Rate
4,800 bps
Oscillation Frequency Range of LSI (f_OSC)
8 to 10 MHz
2,400 bps
4 to 10 MHz
1,200 bps
2 to 10 MHz
H8/38104F Group 19,200 bps
16 to 20 MHz
9,600 bps
8 to 20 MHz
4,800 bps
4 to 20 MHz
2,400 bps
2 to 20 MHz
1,200 bps
2 to 20 MHz
6.7.2 Programming/Erasing in User Program Mode
User program mode means the execution state of the user program. On-board
programming/erasing of an individual flash memory block can also be performed in user program
mode by branching to a user program/erase control program. The user must set branching
conditions and provide on-board means of supplying programming data. The flash memory must
contain the user program/erase control program or a program that provides the user program/erase
control program from external memory. As the flash memory itself cannot be read during
programming/erasing, transfer the user program/erase control program to on-chip RAM, as in boot
mode. Figure 6.9 shows a sample procedure for programming/erasing in user program mode.
Prepare a user program/erase control program in accordance with the description in section 6.8,
Flash Memory Programming/Erasing.
Rev. 7.00 Mar. 08, 2010 Page 153 of 510
REJ09B0024-0700