h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 783

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Table 24.6 System Clock Frequencies for which Automatic Adjustment of LSI Bit Rate Is
In boot mode, this LSI checks the contents of the 8-byte ID code area as shown below to confirm
that the programming control program corresponds with this LSI. To originally write a
programming control program to be used in boot mode, the above 8-byte ID code must be added at
the beginning of the program.
Host Bit Rate
19200 bps
9600 bps
4800 bps
Possible
Note: * The boot programming area cannot be used until the programming control program
H'FF0800
H'FF0808
transferred to RAM enters execution state. Note that the boot program area in the
RAM retains the boot program after branching to the programming control program.
Figure 24.6 On-Chip RAM Area in Boot Mode
H'FF0800
H'FF0808
H'FF1FFF
H'FFE080
H'FFE880
H'FFEFFF
H'FFFF00
H'FFFF7F
40
(Product ID)
System Clock Frequency Range of LSI
8 to 25 MHz
5 to 25 MHz
5 to 25 MHz
Instruction codes of the programming control program
Figure 24.7 ID Code Area
FE
Programming control program area
Boot program area* (1920 bytes)
Boot program area* (128 bytes)
Reserved area* (2048 bytes)
64
ID code area
(6136 bytes)
66
32
Rev. 3.00 Jan 25, 2006 page 731 of 872
31
35
38
REJ09B0286-0300
Section 24 ROM