h8s-2172 Renesas Electronics Corporation., h8s-2172 Datasheet - Page 472
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h8s-2172
Manufacturer Part Number
h8s-2172
Description
Renesas 16-bit Single-chip Microcomputer H8s Family H8s-2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2172.pdf
(570 pages)
- Current page: 472 of 570
- Download datasheet (5Mb)
All of these commands, except for the boot program status inquiry command (H'4F), will be valid
until the boot program receives the programming/erasing transition (H'40). The host can choose
the needed commands out of the commands and inquiries listed above. The boot program status
inquiry command (H'4F) is valid after the boot program has received the programming/erasing
transition command (H'40).
(a) Supported Device Inquiry
The boot program will return the device codes of supported devices and the product code in
response to the supported device inquiry.
• Command, H'20, (one byte): Inquiry regarding supported devices
• Response, H'30, (one byte): Response to the supported device inquiry
• Size (one byte): Number of bytes to be transmitted, excluding the command, size, and
• Number of devices (one byte): The number of device types supported by the boot program
• Number of characters (one byte): The number of characters in the device codes and boot
• Device code (four bytes): ASCII code of the supporting product
• Product name (n bytes): Type name of the boot program in ASCII-coded characters
• SUM (one byte): Checksum
Rev. 2.00, 03/04, page 440 of 534
Command
Response
checksum, that is, the amount of data contributes by the number of devices, characters, device
codes and product names
program's name
The checksum is calculated so that the total number of all values from the command byte to
the SUM byte becomes H'00.
H'20
H'30
Number of
characters
···
SUM
Size
Device code
Number of devices
Product name
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