SH7059 Datasheet, PDF (790/1042 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

24. ROM (SH7058S)
Table 24.18 Inquiry and Selection Commands
Command
H'20
Command Name
Supported Device Inquiry
H'10
H'21
Device Selection
Clock Mode Inquiry
H'11
H'22
Clock Mode Selection
Multiplication Ratio Inquiry
H'23
H'24
H'25
H'26
H'27
H'3F
H'40
H'4F
Operating Clock Frequency Inquiry
User Boot MAT Information Inquiry
User MAT Information Inquiry
Block for Erasing Information Inquiry
Programming Unit Inquiry
New Bit Rate Selection
Transition to Programming/Erasing State
Boot Program Status Inquiry
Description
Inquiry regarding device codes and product
names of F-ZTAT
Selection of device code
Inquiry regarding numbers of clock modes and
values of each mode
Indication of the selected clock mode
Inquiry regarding the number of clock types, the
number of multiplication/division ratios, and the
multiplication/division ratios
Inquiry regarding the maximum and minimum
values of the main clock and peripheral clocks
Inquiry regarding the number of user boot MATs
and the start and last addresses of each MAT
Inquiry regarding the a number of user MATs
and the start and last addresses of each MAT
Inquiry regarding the number of blocks and the
start and last addresses of each block
Inquiry regarding the unit of programming data
Selection of new bit rate
Erasing of user MAT and user boot MAT, and
entry to programming/erasing state
Inquiry into the operation status of the boot
program
The selection commands, which are device selection (H'10), clock mode selection (H'11), and new bit rate selection
(H'3F), should be sent from the host in this order. These commands are certainly required. When two or more selection
commands are sent at once, the last command will be valid.
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).
(1) Supported device inquiry
The boot program will return the device codes of supported devices in response to the supported device inquiry.
Command H'20
⎯ Command: H'20 (one byte): Inquiry regarding supported devices
Response H'30
Size Number of devices
Number of
characters
Device code
Product name
…
SUM
⎯ Response: H'30 (one byte): Response to the supported device inquiry
⎯ Size (one byte): Number of bytes to be transmitted, excluding the command, amount of data, and checksum, that is,
the amount of data consists of the product names, the number of devices, characters, and device codes
⎯ Number of devices (one byte): Number of device types supported by the boot program
Rev.3.00 Mar. 12, 2008 Page 700 of 948
REJ09B0177-0300