HD64F38024HV Datasheet, PDF (200/684 Pages) Renesas Technology Corp – Hardware Manual Renesas 8-Bit Single-Chip Microcomputer H8 Family/H8/300L Super Low Power Series

Section 6 ROM
6.10.2 Programmer Mode Commands
The following commands are supported in programmer mode.
• Memory Read Mode
• Auto-Program Mode
• Auto-Erase Mode
• Status Read Mode
Status polling is used for auto-programming, auto-erasing, and status read modes. In status read
mode, detailed internal information is output after the execution of auto-programming or auto-
erasing. Table 6.13 shows the sequence of each command. In auto-programming mode, 129 cycles
are required since 128 bytes are written at the same time. In memory read mode, the number of
cycles depends on the number of address write cycles (n).
Table 6.13 Command Sequence in Programmer Mode
Command Name
Number
of Cycles Mode
Memory read
1+n
Write
Auto-program
129
Write
Auto-erase
2
Write
Status read
2
Write
n: the number of address write cycles
1st Cycle
Address Data
X
H'00
X
H'40
X
H'20
X
H'71
Mode
Read
Write
Write
Write
2nd Cycle
Address Data
RA
Dout
WA
Din
X
H'20
X
H'71
Rev. 8.00 Mar. 09, 2010 Page 178 of 658
REJ09B0042-0800